1pub mod fs;
2mod git_repository;
3mod ignore;
4mod lsp_command;
5pub mod search;
6pub mod worktree;
7
8#[cfg(test)]
9mod project_tests;
10
11use anyhow::{anyhow, Context, Result};
12use client::{proto, Client, PeerId, TypedEnvelope, User, UserStore};
13use clock::ReplicaId;
14use collections::{hash_map, BTreeMap, HashMap, HashSet};
15use futures::{future::Shared, AsyncWriteExt, Future, FutureExt, StreamExt, TryFutureExt};
16use git_repository::GitRepository;
17use gpui::{
18 AnyModelHandle, AppContext, AsyncAppContext, Entity, ModelContext, ModelHandle,
19 MutableAppContext, Task, UpgradeModelHandle, WeakModelHandle,
20};
21use language::{
22 point_to_lsp,
23 proto::{
24 deserialize_anchor, deserialize_line_ending, deserialize_version, serialize_anchor,
25 serialize_version,
26 },
27 range_from_lsp, range_to_lsp, Anchor, Bias, Buffer, CachedLspAdapter, CharKind, CodeAction,
28 CodeLabel, Completion, Diagnostic, DiagnosticEntry, DiagnosticSet, Event as BufferEvent,
29 File as _, Language, LanguageRegistry, LanguageServerName, LineEnding, LocalFile,
30 OffsetRangeExt, Operation, Patch, PointUtf16, TextBufferSnapshot, ToOffset, ToPointUtf16,
31 Transaction,
32};
33use lsp::{
34 DiagnosticSeverity, DiagnosticTag, DocumentHighlightKind, LanguageServer, LanguageString,
35 MarkedString,
36};
37use lsp_command::*;
38use parking_lot::Mutex;
39use postage::stream::Stream;
40use postage::watch;
41use rand::prelude::*;
42use search::SearchQuery;
43use serde::Serialize;
44use settings::{FormatOnSave, Formatter, Settings};
45use sha2::{Digest, Sha256};
46use similar::{ChangeTag, TextDiff};
47use std::{
48 cell::RefCell,
49 cmp::{self, Ordering},
50 convert::TryInto,
51 ffi::OsString,
52 hash::Hash,
53 mem,
54 num::NonZeroU32,
55 ops::Range,
56 os::unix::{ffi::OsStrExt, prelude::OsStringExt},
57 path::{Component, Path, PathBuf},
58 rc::Rc,
59 str,
60 sync::{
61 atomic::{AtomicUsize, Ordering::SeqCst},
62 Arc,
63 },
64 time::Instant,
65};
66use thiserror::Error;
67use util::{post_inc, ResultExt, TryFutureExt as _};
68
69pub use db::Db;
70pub use fs::*;
71pub use worktree::*;
72
73pub trait Item: Entity {
74 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId>;
75}
76
77pub struct ProjectStore {
78 db: Arc<Db>,
79 projects: Vec<WeakModelHandle<Project>>,
80}
81
82// Language server state is stored across 3 collections:
83// language_servers =>
84// a mapping from unique server id to LanguageServerState which can either be a task for a
85// server in the process of starting, or a running server with adapter and language server arcs
86// language_server_ids => a mapping from worktreeId and server name to the unique server id
87// language_server_statuses => a mapping from unique server id to the current server status
88//
89// Multiple worktrees can map to the same language server for example when you jump to the definition
90// of a file in the standard library. So language_server_ids is used to look up which server is active
91// for a given worktree and language server name
92//
93// When starting a language server, first the id map is checked to make sure a server isn't already available
94// for that worktree. If there is one, it finishes early. Otherwise, a new id is allocated and and
95// the Starting variant of LanguageServerState is stored in the language_servers map.
96pub struct Project {
97 worktrees: Vec<WorktreeHandle>,
98 active_entry: Option<ProjectEntryId>,
99 languages: Arc<LanguageRegistry>,
100 language_servers: HashMap<usize, LanguageServerState>,
101 language_server_ids: HashMap<(WorktreeId, LanguageServerName), usize>,
102 language_server_statuses: BTreeMap<usize, LanguageServerStatus>,
103 language_server_settings: Arc<Mutex<serde_json::Value>>,
104 last_workspace_edits_by_language_server: HashMap<usize, ProjectTransaction>,
105 next_language_server_id: usize,
106 client: Arc<client::Client>,
107 next_entry_id: Arc<AtomicUsize>,
108 next_diagnostic_group_id: usize,
109 user_store: ModelHandle<UserStore>,
110 project_store: ModelHandle<ProjectStore>,
111 fs: Arc<dyn Fs>,
112 client_state: ProjectClientState,
113 collaborators: HashMap<PeerId, Collaborator>,
114 client_subscriptions: Vec<client::Subscription>,
115 _subscriptions: Vec<gpui::Subscription>,
116 opened_buffer: (watch::Sender<()>, watch::Receiver<()>),
117 shared_buffers: HashMap<PeerId, HashSet<u64>>,
118 #[allow(clippy::type_complexity)]
119 loading_buffers: HashMap<
120 ProjectPath,
121 postage::watch::Receiver<Option<Result<ModelHandle<Buffer>, Arc<anyhow::Error>>>>,
122 >,
123 #[allow(clippy::type_complexity)]
124 loading_local_worktrees:
125 HashMap<Arc<Path>, Shared<Task<Result<ModelHandle<Worktree>, Arc<anyhow::Error>>>>>,
126 opened_buffers: HashMap<u64, OpenBuffer>,
127 incomplete_buffers: HashMap<u64, ModelHandle<Buffer>>,
128 buffer_snapshots: HashMap<u64, Vec<(i32, TextBufferSnapshot)>>,
129 nonce: u128,
130 initialized_persistent_state: bool,
131 _maintain_buffer_languages: Task<()>,
132}
133
134#[derive(Error, Debug)]
135pub enum JoinProjectError {
136 #[error("host declined join request")]
137 HostDeclined,
138 #[error("host closed the project")]
139 HostClosedProject,
140 #[error("host went offline")]
141 HostWentOffline,
142 #[error("{0}")]
143 Other(#[from] anyhow::Error),
144}
145
146enum OpenBuffer {
147 Strong(ModelHandle<Buffer>),
148 Weak(WeakModelHandle<Buffer>),
149 Operations(Vec<Operation>),
150}
151
152enum WorktreeHandle {
153 Strong(ModelHandle<Worktree>),
154 Weak(WeakModelHandle<Worktree>),
155}
156
157enum ProjectClientState {
158 Local {
159 is_shared: bool,
160 remote_id_tx: watch::Sender<Option<u64>>,
161 remote_id_rx: watch::Receiver<Option<u64>>,
162 online_tx: watch::Sender<bool>,
163 online_rx: watch::Receiver<bool>,
164 _maintain_remote_id: Task<Option<()>>,
165 _maintain_online_status: Task<Option<()>>,
166 },
167 Remote {
168 sharing_has_stopped: bool,
169 remote_id: u64,
170 replica_id: ReplicaId,
171 _detect_unshare: Task<Option<()>>,
172 },
173}
174
175#[derive(Clone, Debug)]
176pub struct Collaborator {
177 pub user: Arc<User>,
178 pub peer_id: PeerId,
179 pub replica_id: ReplicaId,
180}
181
182#[derive(Clone, Debug, PartialEq, Eq)]
183pub enum Event {
184 ActiveEntryChanged(Option<ProjectEntryId>),
185 WorktreeAdded,
186 WorktreeRemoved(WorktreeId),
187 DiskBasedDiagnosticsStarted {
188 language_server_id: usize,
189 },
190 DiskBasedDiagnosticsFinished {
191 language_server_id: usize,
192 },
193 DiagnosticsUpdated {
194 path: ProjectPath,
195 language_server_id: usize,
196 },
197 RemoteIdChanged(Option<u64>),
198 DisconnectedFromHost,
199 CollaboratorLeft(PeerId),
200 ContactRequestedJoin(Arc<User>),
201 ContactCancelledJoinRequest(Arc<User>),
202}
203
204pub enum LanguageServerState {
205 Starting(Task<Option<Arc<LanguageServer>>>),
206 Running {
207 language: Arc<Language>,
208 adapter: Arc<CachedLspAdapter>,
209 server: Arc<LanguageServer>,
210 },
211}
212
213#[derive(Serialize)]
214pub struct LanguageServerStatus {
215 pub name: String,
216 pub pending_work: BTreeMap<String, LanguageServerProgress>,
217 pub has_pending_diagnostic_updates: bool,
218 progress_tokens: HashSet<String>,
219}
220
221#[derive(Clone, Debug, Serialize)]
222pub struct LanguageServerProgress {
223 pub message: Option<String>,
224 pub percentage: Option<usize>,
225 #[serde(skip_serializing)]
226 pub last_update_at: Instant,
227}
228
229#[derive(Clone, Debug, Eq, PartialEq, Hash, PartialOrd, Ord)]
230pub struct ProjectPath {
231 pub worktree_id: WorktreeId,
232 pub path: Arc<Path>,
233}
234
235#[derive(Copy, Clone, Debug, Default, PartialEq, Serialize)]
236pub struct DiagnosticSummary {
237 pub language_server_id: usize,
238 pub error_count: usize,
239 pub warning_count: usize,
240}
241
242#[derive(Debug, Clone)]
243pub struct Location {
244 pub buffer: ModelHandle<Buffer>,
245 pub range: Range<language::Anchor>,
246}
247
248#[derive(Debug, Clone)]
249pub struct LocationLink {
250 pub origin: Option<Location>,
251 pub target: Location,
252}
253
254#[derive(Debug)]
255pub struct DocumentHighlight {
256 pub range: Range<language::Anchor>,
257 pub kind: DocumentHighlightKind,
258}
259
260#[derive(Clone, Debug)]
261pub struct Symbol {
262 pub language_server_name: LanguageServerName,
263 pub source_worktree_id: WorktreeId,
264 pub path: ProjectPath,
265 pub label: CodeLabel,
266 pub name: String,
267 pub kind: lsp::SymbolKind,
268 pub range: Range<PointUtf16>,
269 pub signature: [u8; 32],
270}
271
272#[derive(Clone, Debug, PartialEq)]
273pub struct HoverBlock {
274 pub text: String,
275 pub language: Option<String>,
276}
277
278impl HoverBlock {
279 fn try_new(marked_string: MarkedString) -> Option<Self> {
280 let result = match marked_string {
281 MarkedString::LanguageString(LanguageString { language, value }) => HoverBlock {
282 text: value,
283 language: Some(language),
284 },
285 MarkedString::String(text) => HoverBlock {
286 text,
287 language: None,
288 },
289 };
290 if result.text.is_empty() {
291 None
292 } else {
293 Some(result)
294 }
295 }
296}
297
298#[derive(Debug)]
299pub struct Hover {
300 pub contents: Vec<HoverBlock>,
301 pub range: Option<Range<language::Anchor>>,
302}
303
304#[derive(Default)]
305pub struct ProjectTransaction(pub HashMap<ModelHandle<Buffer>, language::Transaction>);
306
307impl DiagnosticSummary {
308 fn new<'a, T: 'a>(
309 language_server_id: usize,
310 diagnostics: impl IntoIterator<Item = &'a DiagnosticEntry<T>>,
311 ) -> Self {
312 let mut this = Self {
313 language_server_id,
314 error_count: 0,
315 warning_count: 0,
316 };
317
318 for entry in diagnostics {
319 if entry.diagnostic.is_primary {
320 match entry.diagnostic.severity {
321 DiagnosticSeverity::ERROR => this.error_count += 1,
322 DiagnosticSeverity::WARNING => this.warning_count += 1,
323 _ => {}
324 }
325 }
326 }
327
328 this
329 }
330
331 pub fn is_empty(&self) -> bool {
332 self.error_count == 0 && self.warning_count == 0
333 }
334
335 pub fn to_proto(&self, path: &Path) -> proto::DiagnosticSummary {
336 proto::DiagnosticSummary {
337 path: path.to_string_lossy().to_string(),
338 language_server_id: self.language_server_id as u64,
339 error_count: self.error_count as u32,
340 warning_count: self.warning_count as u32,
341 }
342 }
343}
344
345#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
346pub struct ProjectEntryId(usize);
347
348impl ProjectEntryId {
349 pub const MAX: Self = Self(usize::MAX);
350
351 pub fn new(counter: &AtomicUsize) -> Self {
352 Self(counter.fetch_add(1, SeqCst))
353 }
354
355 pub fn from_proto(id: u64) -> Self {
356 Self(id as usize)
357 }
358
359 pub fn to_proto(&self) -> u64 {
360 self.0 as u64
361 }
362
363 pub fn to_usize(&self) -> usize {
364 self.0
365 }
366}
367
368#[derive(Debug, Clone, Copy, PartialEq, Eq)]
369pub enum FormatTrigger {
370 Save,
371 Manual,
372}
373
374impl FormatTrigger {
375 fn from_proto(value: i32) -> FormatTrigger {
376 match value {
377 0 => FormatTrigger::Save,
378 1 => FormatTrigger::Manual,
379 _ => FormatTrigger::Save,
380 }
381 }
382}
383
384impl Project {
385 pub fn init(client: &Arc<Client>) {
386 client.add_model_message_handler(Self::handle_request_join_project);
387 client.add_model_message_handler(Self::handle_add_collaborator);
388 client.add_model_message_handler(Self::handle_buffer_reloaded);
389 client.add_model_message_handler(Self::handle_buffer_saved);
390 client.add_model_message_handler(Self::handle_start_language_server);
391 client.add_model_message_handler(Self::handle_update_language_server);
392 client.add_model_message_handler(Self::handle_remove_collaborator);
393 client.add_model_message_handler(Self::handle_join_project_request_cancelled);
394 client.add_model_message_handler(Self::handle_update_project);
395 client.add_model_message_handler(Self::handle_unregister_project);
396 client.add_model_message_handler(Self::handle_project_unshared);
397 client.add_model_message_handler(Self::handle_create_buffer_for_peer);
398 client.add_model_message_handler(Self::handle_update_buffer_file);
399 client.add_model_message_handler(Self::handle_update_buffer);
400 client.add_model_message_handler(Self::handle_update_diagnostic_summary);
401 client.add_model_message_handler(Self::handle_update_worktree);
402 client.add_model_request_handler(Self::handle_create_project_entry);
403 client.add_model_request_handler(Self::handle_rename_project_entry);
404 client.add_model_request_handler(Self::handle_copy_project_entry);
405 client.add_model_request_handler(Self::handle_delete_project_entry);
406 client.add_model_request_handler(Self::handle_apply_additional_edits_for_completion);
407 client.add_model_request_handler(Self::handle_apply_code_action);
408 client.add_model_request_handler(Self::handle_reload_buffers);
409 client.add_model_request_handler(Self::handle_format_buffers);
410 client.add_model_request_handler(Self::handle_get_code_actions);
411 client.add_model_request_handler(Self::handle_get_completions);
412 client.add_model_request_handler(Self::handle_lsp_command::<GetHover>);
413 client.add_model_request_handler(Self::handle_lsp_command::<GetDefinition>);
414 client.add_model_request_handler(Self::handle_lsp_command::<GetTypeDefinition>);
415 client.add_model_request_handler(Self::handle_lsp_command::<GetDocumentHighlights>);
416 client.add_model_request_handler(Self::handle_lsp_command::<GetReferences>);
417 client.add_model_request_handler(Self::handle_lsp_command::<PrepareRename>);
418 client.add_model_request_handler(Self::handle_lsp_command::<PerformRename>);
419 client.add_model_request_handler(Self::handle_search_project);
420 client.add_model_request_handler(Self::handle_get_project_symbols);
421 client.add_model_request_handler(Self::handle_open_buffer_for_symbol);
422 client.add_model_request_handler(Self::handle_open_buffer_by_id);
423 client.add_model_request_handler(Self::handle_open_buffer_by_path);
424 client.add_model_request_handler(Self::handle_save_buffer);
425 }
426
427 pub fn local(
428 online: bool,
429 client: Arc<Client>,
430 user_store: ModelHandle<UserStore>,
431 project_store: ModelHandle<ProjectStore>,
432 languages: Arc<LanguageRegistry>,
433 fs: Arc<dyn Fs>,
434 cx: &mut MutableAppContext,
435 ) -> ModelHandle<Self> {
436 cx.add_model(|cx: &mut ModelContext<Self>| {
437 let (remote_id_tx, remote_id_rx) = watch::channel();
438 let _maintain_remote_id = cx.spawn_weak({
439 let mut status_rx = client.clone().status();
440 move |this, mut cx| async move {
441 while let Some(status) = status_rx.recv().await {
442 let this = this.upgrade(&cx)?;
443 if status.is_connected() {
444 this.update(&mut cx, |this, cx| this.register(cx))
445 .await
446 .log_err()?;
447 } else {
448 this.update(&mut cx, |this, cx| this.unregister(cx))
449 .await
450 .log_err();
451 }
452 }
453 None
454 }
455 });
456
457 let (online_tx, online_rx) = watch::channel_with(online);
458 let _maintain_online_status = cx.spawn_weak({
459 let mut online_rx = online_rx.clone();
460 move |this, mut cx| async move {
461 while let Some(online) = online_rx.recv().await {
462 let this = this.upgrade(&cx)?;
463 this.update(&mut cx, |this, cx| {
464 if !online {
465 this.unshared(cx);
466 }
467 this.metadata_changed(false, cx)
468 });
469 }
470 None
471 }
472 });
473
474 let handle = cx.weak_handle();
475 project_store.update(cx, |store, cx| store.add_project(handle, cx));
476
477 Self {
478 worktrees: Default::default(),
479 collaborators: Default::default(),
480 opened_buffers: Default::default(),
481 shared_buffers: Default::default(),
482 incomplete_buffers: Default::default(),
483 loading_buffers: Default::default(),
484 loading_local_worktrees: Default::default(),
485 buffer_snapshots: Default::default(),
486 client_state: ProjectClientState::Local {
487 is_shared: false,
488 remote_id_tx,
489 remote_id_rx,
490 online_tx,
491 online_rx,
492 _maintain_remote_id,
493 _maintain_online_status,
494 },
495 opened_buffer: watch::channel(),
496 client_subscriptions: Vec::new(),
497 _subscriptions: vec![cx.observe_global::<Settings, _>(Self::on_settings_changed)],
498 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
499 active_entry: None,
500 languages,
501 client,
502 user_store,
503 project_store,
504 fs,
505 next_entry_id: Default::default(),
506 next_diagnostic_group_id: Default::default(),
507 language_servers: Default::default(),
508 language_server_ids: Default::default(),
509 language_server_statuses: Default::default(),
510 last_workspace_edits_by_language_server: Default::default(),
511 language_server_settings: Default::default(),
512 next_language_server_id: 0,
513 nonce: StdRng::from_entropy().gen(),
514 initialized_persistent_state: false,
515 }
516 })
517 }
518
519 pub async fn remote(
520 remote_id: u64,
521 client: Arc<Client>,
522 user_store: ModelHandle<UserStore>,
523 project_store: ModelHandle<ProjectStore>,
524 languages: Arc<LanguageRegistry>,
525 fs: Arc<dyn Fs>,
526 mut cx: AsyncAppContext,
527 ) -> Result<ModelHandle<Self>, JoinProjectError> {
528 client.authenticate_and_connect(true, &cx).await?;
529
530 let response = client
531 .request(proto::JoinProject {
532 project_id: remote_id,
533 })
534 .await?;
535
536 let response = match response.variant.ok_or_else(|| anyhow!("missing variant"))? {
537 proto::join_project_response::Variant::Accept(response) => response,
538 proto::join_project_response::Variant::Decline(decline) => {
539 match proto::join_project_response::decline::Reason::from_i32(decline.reason) {
540 Some(proto::join_project_response::decline::Reason::Declined) => {
541 Err(JoinProjectError::HostDeclined)?
542 }
543 Some(proto::join_project_response::decline::Reason::Closed) => {
544 Err(JoinProjectError::HostClosedProject)?
545 }
546 Some(proto::join_project_response::decline::Reason::WentOffline) => {
547 Err(JoinProjectError::HostWentOffline)?
548 }
549 None => Err(anyhow!("missing decline reason"))?,
550 }
551 }
552 };
553
554 let replica_id = response.replica_id as ReplicaId;
555
556 let mut worktrees = Vec::new();
557 for worktree in response.worktrees {
558 let worktree = cx
559 .update(|cx| Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx));
560 worktrees.push(worktree);
561 }
562
563 let this = cx.add_model(|cx: &mut ModelContext<Self>| {
564 let handle = cx.weak_handle();
565 project_store.update(cx, |store, cx| store.add_project(handle, cx));
566
567 let mut this = Self {
568 worktrees: Vec::new(),
569 loading_buffers: Default::default(),
570 opened_buffer: watch::channel(),
571 shared_buffers: Default::default(),
572 incomplete_buffers: Default::default(),
573 loading_local_worktrees: Default::default(),
574 active_entry: None,
575 collaborators: Default::default(),
576 _maintain_buffer_languages: Self::maintain_buffer_languages(&languages, cx),
577 languages,
578 user_store: user_store.clone(),
579 project_store,
580 fs,
581 next_entry_id: Default::default(),
582 next_diagnostic_group_id: Default::default(),
583 client_subscriptions: vec![client.add_model_for_remote_entity(remote_id, cx)],
584 _subscriptions: Default::default(),
585 client: client.clone(),
586 client_state: ProjectClientState::Remote {
587 sharing_has_stopped: false,
588 remote_id,
589 replica_id,
590 _detect_unshare: cx.spawn_weak(move |this, mut cx| {
591 async move {
592 let mut status = client.status();
593 let is_connected =
594 status.next().await.map_or(false, |s| s.is_connected());
595 // Even if we're initially connected, any future change of the status means we momentarily disconnected.
596 if !is_connected || status.next().await.is_some() {
597 if let Some(this) = this.upgrade(&cx) {
598 this.update(&mut cx, |this, cx| this.disconnected_from_host(cx))
599 }
600 }
601 Ok(())
602 }
603 .log_err()
604 }),
605 },
606 language_servers: Default::default(),
607 language_server_ids: Default::default(),
608 language_server_settings: Default::default(),
609 language_server_statuses: response
610 .language_servers
611 .into_iter()
612 .map(|server| {
613 (
614 server.id as usize,
615 LanguageServerStatus {
616 name: server.name,
617 pending_work: Default::default(),
618 has_pending_diagnostic_updates: false,
619 progress_tokens: Default::default(),
620 },
621 )
622 })
623 .collect(),
624 last_workspace_edits_by_language_server: Default::default(),
625 next_language_server_id: 0,
626 opened_buffers: Default::default(),
627 buffer_snapshots: Default::default(),
628 nonce: StdRng::from_entropy().gen(),
629 initialized_persistent_state: false,
630 };
631 for worktree in worktrees {
632 this.add_worktree(&worktree, cx);
633 }
634 this
635 });
636
637 let user_ids = response
638 .collaborators
639 .iter()
640 .map(|peer| peer.user_id)
641 .collect();
642 user_store
643 .update(&mut cx, |user_store, cx| user_store.get_users(user_ids, cx))
644 .await?;
645 let mut collaborators = HashMap::default();
646 for message in response.collaborators {
647 let collaborator = Collaborator::from_proto(message, &user_store, &mut cx).await?;
648 collaborators.insert(collaborator.peer_id, collaborator);
649 }
650
651 this.update(&mut cx, |this, _| {
652 this.collaborators = collaborators;
653 });
654
655 Ok(this)
656 }
657
658 #[cfg(any(test, feature = "test-support"))]
659 pub async fn test(
660 fs: Arc<dyn Fs>,
661 root_paths: impl IntoIterator<Item = &Path>,
662 cx: &mut gpui::TestAppContext,
663 ) -> ModelHandle<Project> {
664 if !cx.read(|cx| cx.has_global::<Settings>()) {
665 cx.update(|cx| cx.set_global(Settings::test(cx)));
666 }
667
668 let languages = Arc::new(LanguageRegistry::test());
669 let http_client = client::test::FakeHttpClient::with_404_response();
670 let client = cx.update(|cx| client::Client::new(http_client.clone(), cx));
671 let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http_client, cx));
672 let project_store = cx.add_model(|_| ProjectStore::new(Db::open_fake()));
673 let project = cx.update(|cx| {
674 Project::local(true, client, user_store, project_store, languages, fs, cx)
675 });
676 for path in root_paths {
677 let (tree, _) = project
678 .update(cx, |project, cx| {
679 project.find_or_create_local_worktree(path, true, cx)
680 })
681 .await
682 .unwrap();
683 tree.read_with(cx, |tree, _| tree.as_local().unwrap().scan_complete())
684 .await;
685 }
686 project
687 }
688
689 pub fn restore_state(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
690 if self.is_remote() {
691 return Task::ready(Ok(()));
692 }
693
694 let db = self.project_store.read(cx).db.clone();
695 let keys = self.db_keys_for_online_state(cx);
696 let online_by_default = cx.global::<Settings>().projects_online_by_default;
697 let read_online = cx.background().spawn(async move {
698 let values = db.read(keys)?;
699 anyhow::Ok(
700 values
701 .into_iter()
702 .all(|e| e.map_or(online_by_default, |e| e == [true as u8])),
703 )
704 });
705 cx.spawn(|this, mut cx| async move {
706 let online = read_online.await.log_err().unwrap_or(false);
707 this.update(&mut cx, |this, cx| {
708 this.initialized_persistent_state = true;
709 if let ProjectClientState::Local { online_tx, .. } = &mut this.client_state {
710 let mut online_tx = online_tx.borrow_mut();
711 if *online_tx != online {
712 *online_tx = online;
713 drop(online_tx);
714 this.metadata_changed(false, cx);
715 }
716 }
717 });
718 Ok(())
719 })
720 }
721
722 fn persist_state(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
723 if self.is_remote() || !self.initialized_persistent_state {
724 return Task::ready(Ok(()));
725 }
726
727 let db = self.project_store.read(cx).db.clone();
728 let keys = self.db_keys_for_online_state(cx);
729 let is_online = self.is_online();
730 cx.background().spawn(async move {
731 let value = &[is_online as u8];
732 db.write(keys.into_iter().map(|key| (key, value)))
733 })
734 }
735
736 fn on_settings_changed(&mut self, cx: &mut ModelContext<Self>) {
737 let settings = cx.global::<Settings>();
738
739 let mut language_servers_to_start = Vec::new();
740 for buffer in self.opened_buffers.values() {
741 if let Some(buffer) = buffer.upgrade(cx) {
742 let buffer = buffer.read(cx);
743 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language())
744 {
745 if settings.enable_language_server(Some(&language.name())) {
746 let worktree = file.worktree.read(cx);
747 language_servers_to_start.push((
748 worktree.id(),
749 worktree.as_local().unwrap().abs_path().clone(),
750 language.clone(),
751 ));
752 }
753 }
754 }
755 }
756
757 let mut language_servers_to_stop = Vec::new();
758 for language in self.languages.to_vec() {
759 if let Some(lsp_adapter) = language.lsp_adapter() {
760 if !settings.enable_language_server(Some(&language.name())) {
761 let lsp_name = &lsp_adapter.name;
762 for (worktree_id, started_lsp_name) in self.language_server_ids.keys() {
763 if lsp_name == started_lsp_name {
764 language_servers_to_stop.push((*worktree_id, started_lsp_name.clone()));
765 }
766 }
767 }
768 }
769 }
770
771 // Stop all newly-disabled language servers.
772 for (worktree_id, adapter_name) in language_servers_to_stop {
773 self.stop_language_server(worktree_id, adapter_name, cx)
774 .detach();
775 }
776
777 // Start all the newly-enabled language servers.
778 for (worktree_id, worktree_path, language) in language_servers_to_start {
779 self.start_language_server(worktree_id, worktree_path, language, cx);
780 }
781
782 cx.notify();
783 }
784
785 pub fn buffer_for_id(&self, remote_id: u64, cx: &AppContext) -> Option<ModelHandle<Buffer>> {
786 self.opened_buffers
787 .get(&remote_id)
788 .and_then(|buffer| buffer.upgrade(cx))
789 }
790
791 pub fn languages(&self) -> &Arc<LanguageRegistry> {
792 &self.languages
793 }
794
795 pub fn client(&self) -> Arc<Client> {
796 self.client.clone()
797 }
798
799 pub fn user_store(&self) -> ModelHandle<UserStore> {
800 self.user_store.clone()
801 }
802
803 pub fn project_store(&self) -> ModelHandle<ProjectStore> {
804 self.project_store.clone()
805 }
806
807 #[cfg(any(test, feature = "test-support"))]
808 pub fn check_invariants(&self, cx: &AppContext) {
809 if self.is_local() {
810 let mut worktree_root_paths = HashMap::default();
811 for worktree in self.worktrees(cx) {
812 let worktree = worktree.read(cx);
813 let abs_path = worktree.as_local().unwrap().abs_path().clone();
814 let prev_worktree_id = worktree_root_paths.insert(abs_path.clone(), worktree.id());
815 assert_eq!(
816 prev_worktree_id,
817 None,
818 "abs path {:?} for worktree {:?} is not unique ({:?} was already registered with the same path)",
819 abs_path,
820 worktree.id(),
821 prev_worktree_id
822 )
823 }
824 } else {
825 let replica_id = self.replica_id();
826 for buffer in self.opened_buffers.values() {
827 if let Some(buffer) = buffer.upgrade(cx) {
828 let buffer = buffer.read(cx);
829 assert_eq!(
830 buffer.deferred_ops_len(),
831 0,
832 "replica {}, buffer {} has deferred operations",
833 replica_id,
834 buffer.remote_id()
835 );
836 }
837 }
838 }
839 }
840
841 #[cfg(any(test, feature = "test-support"))]
842 pub fn has_open_buffer(&self, path: impl Into<ProjectPath>, cx: &AppContext) -> bool {
843 let path = path.into();
844 if let Some(worktree) = self.worktree_for_id(path.worktree_id, cx) {
845 self.opened_buffers.iter().any(|(_, buffer)| {
846 if let Some(buffer) = buffer.upgrade(cx) {
847 if let Some(file) = File::from_dyn(buffer.read(cx).file()) {
848 if file.worktree == worktree && file.path() == &path.path {
849 return true;
850 }
851 }
852 }
853 false
854 })
855 } else {
856 false
857 }
858 }
859
860 pub fn fs(&self) -> &Arc<dyn Fs> {
861 &self.fs
862 }
863
864 pub fn set_online(&mut self, online: bool, _: &mut ModelContext<Self>) {
865 if let ProjectClientState::Local { online_tx, .. } = &mut self.client_state {
866 let mut online_tx = online_tx.borrow_mut();
867 if *online_tx != online {
868 *online_tx = online;
869 }
870 }
871 }
872
873 pub fn is_online(&self) -> bool {
874 match &self.client_state {
875 ProjectClientState::Local { online_rx, .. } => *online_rx.borrow(),
876 ProjectClientState::Remote { .. } => true,
877 }
878 }
879
880 fn unregister(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
881 self.unshared(cx);
882 if let ProjectClientState::Local { remote_id_rx, .. } = &mut self.client_state {
883 if let Some(remote_id) = *remote_id_rx.borrow() {
884 let request = self.client.request(proto::UnregisterProject {
885 project_id: remote_id,
886 });
887 return cx.spawn(|this, mut cx| async move {
888 let response = request.await;
889
890 // Unregistering the project causes the server to send out a
891 // contact update removing this project from the host's list
892 // of online projects. Wait until this contact update has been
893 // processed before clearing out this project's remote id, so
894 // that there is no moment where this project appears in the
895 // contact metadata and *also* has no remote id.
896 this.update(&mut cx, |this, cx| {
897 this.user_store()
898 .update(cx, |store, _| store.contact_updates_done())
899 })
900 .await;
901
902 this.update(&mut cx, |this, cx| {
903 if let ProjectClientState::Local { remote_id_tx, .. } =
904 &mut this.client_state
905 {
906 *remote_id_tx.borrow_mut() = None;
907 }
908 this.client_subscriptions.clear();
909 this.metadata_changed(false, cx);
910 });
911 response.map(drop)
912 });
913 }
914 }
915 Task::ready(Ok(()))
916 }
917
918 fn register(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
919 if let ProjectClientState::Local {
920 remote_id_rx,
921 online_rx,
922 ..
923 } = &self.client_state
924 {
925 if remote_id_rx.borrow().is_some() {
926 return Task::ready(Ok(()));
927 }
928
929 let response = self.client.request(proto::RegisterProject {
930 online: *online_rx.borrow(),
931 });
932 cx.spawn(|this, mut cx| async move {
933 let remote_id = response.await?.project_id;
934 this.update(&mut cx, |this, cx| {
935 if let ProjectClientState::Local { remote_id_tx, .. } = &mut this.client_state {
936 *remote_id_tx.borrow_mut() = Some(remote_id);
937 }
938
939 this.metadata_changed(false, cx);
940 cx.emit(Event::RemoteIdChanged(Some(remote_id)));
941 this.client_subscriptions
942 .push(this.client.add_model_for_remote_entity(remote_id, cx));
943 Ok(())
944 })
945 })
946 } else {
947 Task::ready(Err(anyhow!("can't register a remote project")))
948 }
949 }
950
951 pub fn remote_id(&self) -> Option<u64> {
952 match &self.client_state {
953 ProjectClientState::Local { remote_id_rx, .. } => *remote_id_rx.borrow(),
954 ProjectClientState::Remote { remote_id, .. } => Some(*remote_id),
955 }
956 }
957
958 pub fn next_remote_id(&self) -> impl Future<Output = u64> {
959 let mut id = None;
960 let mut watch = None;
961 match &self.client_state {
962 ProjectClientState::Local { remote_id_rx, .. } => watch = Some(remote_id_rx.clone()),
963 ProjectClientState::Remote { remote_id, .. } => id = Some(*remote_id),
964 }
965
966 async move {
967 if let Some(id) = id {
968 return id;
969 }
970 let mut watch = watch.unwrap();
971 loop {
972 let id = *watch.borrow();
973 if let Some(id) = id {
974 return id;
975 }
976 watch.next().await;
977 }
978 }
979 }
980
981 pub fn shared_remote_id(&self) -> Option<u64> {
982 match &self.client_state {
983 ProjectClientState::Local {
984 remote_id_rx,
985 is_shared,
986 ..
987 } => {
988 if *is_shared {
989 *remote_id_rx.borrow()
990 } else {
991 None
992 }
993 }
994 ProjectClientState::Remote { remote_id, .. } => Some(*remote_id),
995 }
996 }
997
998 pub fn replica_id(&self) -> ReplicaId {
999 match &self.client_state {
1000 ProjectClientState::Local { .. } => 0,
1001 ProjectClientState::Remote { replica_id, .. } => *replica_id,
1002 }
1003 }
1004
1005 fn metadata_changed(&mut self, persist: bool, cx: &mut ModelContext<Self>) {
1006 if let ProjectClientState::Local {
1007 remote_id_rx,
1008 online_rx,
1009 ..
1010 } = &self.client_state
1011 {
1012 // Broadcast worktrees only if the project is online.
1013 let worktrees = if *online_rx.borrow() {
1014 self.worktrees
1015 .iter()
1016 .filter_map(|worktree| {
1017 worktree
1018 .upgrade(cx)
1019 .map(|worktree| worktree.read(cx).as_local().unwrap().metadata_proto())
1020 })
1021 .collect()
1022 } else {
1023 Default::default()
1024 };
1025 if let Some(project_id) = *remote_id_rx.borrow() {
1026 let online = *online_rx.borrow();
1027 self.client
1028 .send(proto::UpdateProject {
1029 project_id,
1030 worktrees,
1031 online,
1032 })
1033 .log_err();
1034
1035 if online {
1036 let worktrees = self.visible_worktrees(cx).collect::<Vec<_>>();
1037 let scans_complete =
1038 futures::future::join_all(worktrees.iter().filter_map(|worktree| {
1039 Some(worktree.read(cx).as_local()?.scan_complete())
1040 }));
1041
1042 let worktrees = worktrees.into_iter().map(|handle| handle.downgrade());
1043 cx.spawn_weak(move |_, cx| async move {
1044 scans_complete.await;
1045 cx.read(|cx| {
1046 for worktree in worktrees {
1047 if let Some(worktree) = worktree
1048 .upgrade(cx)
1049 .and_then(|worktree| worktree.read(cx).as_local())
1050 {
1051 worktree.send_extension_counts(project_id);
1052 }
1053 }
1054 })
1055 })
1056 .detach();
1057 }
1058 }
1059
1060 self.project_store.update(cx, |_, cx| cx.notify());
1061 if persist {
1062 self.persist_state(cx).detach_and_log_err(cx);
1063 }
1064 cx.notify();
1065 }
1066 }
1067
1068 pub fn collaborators(&self) -> &HashMap<PeerId, Collaborator> {
1069 &self.collaborators
1070 }
1071
1072 pub fn worktrees<'a>(
1073 &'a self,
1074 cx: &'a AppContext,
1075 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
1076 self.worktrees
1077 .iter()
1078 .filter_map(move |worktree| worktree.upgrade(cx))
1079 }
1080
1081 pub fn visible_worktrees<'a>(
1082 &'a self,
1083 cx: &'a AppContext,
1084 ) -> impl 'a + DoubleEndedIterator<Item = ModelHandle<Worktree>> {
1085 self.worktrees.iter().filter_map(|worktree| {
1086 worktree.upgrade(cx).and_then(|worktree| {
1087 if worktree.read(cx).is_visible() {
1088 Some(worktree)
1089 } else {
1090 None
1091 }
1092 })
1093 })
1094 }
1095
1096 pub fn worktree_root_names<'a>(&'a self, cx: &'a AppContext) -> impl Iterator<Item = &'a str> {
1097 self.visible_worktrees(cx)
1098 .map(|tree| tree.read(cx).root_name())
1099 }
1100
1101 fn db_keys_for_online_state(&self, cx: &AppContext) -> Vec<String> {
1102 self.worktrees
1103 .iter()
1104 .filter_map(|worktree| {
1105 let worktree = worktree.upgrade(cx)?.read(cx);
1106 if worktree.is_visible() {
1107 Some(format!(
1108 "project-path-online:{}",
1109 worktree.as_local().unwrap().abs_path().to_string_lossy()
1110 ))
1111 } else {
1112 None
1113 }
1114 })
1115 .collect::<Vec<_>>()
1116 }
1117
1118 pub fn worktree_for_id(
1119 &self,
1120 id: WorktreeId,
1121 cx: &AppContext,
1122 ) -> Option<ModelHandle<Worktree>> {
1123 self.worktrees(cx)
1124 .find(|worktree| worktree.read(cx).id() == id)
1125 }
1126
1127 pub fn worktree_for_entry(
1128 &self,
1129 entry_id: ProjectEntryId,
1130 cx: &AppContext,
1131 ) -> Option<ModelHandle<Worktree>> {
1132 self.worktrees(cx)
1133 .find(|worktree| worktree.read(cx).contains_entry(entry_id))
1134 }
1135
1136 pub fn worktree_id_for_entry(
1137 &self,
1138 entry_id: ProjectEntryId,
1139 cx: &AppContext,
1140 ) -> Option<WorktreeId> {
1141 self.worktree_for_entry(entry_id, cx)
1142 .map(|worktree| worktree.read(cx).id())
1143 }
1144
1145 pub fn contains_paths(&self, paths: &[PathBuf], cx: &AppContext) -> bool {
1146 paths.iter().all(|path| self.contains_path(path, cx))
1147 }
1148
1149 pub fn contains_path(&self, path: &Path, cx: &AppContext) -> bool {
1150 for worktree in self.worktrees(cx) {
1151 let worktree = worktree.read(cx).as_local();
1152 if worktree.map_or(false, |w| w.contains_abs_path(path)) {
1153 return true;
1154 }
1155 }
1156 false
1157 }
1158
1159 pub fn create_entry(
1160 &mut self,
1161 project_path: impl Into<ProjectPath>,
1162 is_directory: bool,
1163 cx: &mut ModelContext<Self>,
1164 ) -> Option<Task<Result<Entry>>> {
1165 let project_path = project_path.into();
1166 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
1167 if self.is_local() {
1168 Some(worktree.update(cx, |worktree, cx| {
1169 worktree
1170 .as_local_mut()
1171 .unwrap()
1172 .create_entry(project_path.path, is_directory, cx)
1173 }))
1174 } else {
1175 let client = self.client.clone();
1176 let project_id = self.remote_id().unwrap();
1177 Some(cx.spawn_weak(|_, mut cx| async move {
1178 let response = client
1179 .request(proto::CreateProjectEntry {
1180 worktree_id: project_path.worktree_id.to_proto(),
1181 project_id,
1182 path: project_path.path.as_os_str().as_bytes().to_vec(),
1183 is_directory,
1184 })
1185 .await?;
1186 let entry = response
1187 .entry
1188 .ok_or_else(|| anyhow!("missing entry in response"))?;
1189 worktree
1190 .update(&mut cx, |worktree, cx| {
1191 worktree.as_remote_mut().unwrap().insert_entry(
1192 entry,
1193 response.worktree_scan_id as usize,
1194 cx,
1195 )
1196 })
1197 .await
1198 }))
1199 }
1200 }
1201
1202 pub fn copy_entry(
1203 &mut self,
1204 entry_id: ProjectEntryId,
1205 new_path: impl Into<Arc<Path>>,
1206 cx: &mut ModelContext<Self>,
1207 ) -> Option<Task<Result<Entry>>> {
1208 let worktree = self.worktree_for_entry(entry_id, cx)?;
1209 let new_path = new_path.into();
1210 if self.is_local() {
1211 worktree.update(cx, |worktree, cx| {
1212 worktree
1213 .as_local_mut()
1214 .unwrap()
1215 .copy_entry(entry_id, new_path, cx)
1216 })
1217 } else {
1218 let client = self.client.clone();
1219 let project_id = self.remote_id().unwrap();
1220
1221 Some(cx.spawn_weak(|_, mut cx| async move {
1222 let response = client
1223 .request(proto::CopyProjectEntry {
1224 project_id,
1225 entry_id: entry_id.to_proto(),
1226 new_path: new_path.as_os_str().as_bytes().to_vec(),
1227 })
1228 .await?;
1229 let entry = response
1230 .entry
1231 .ok_or_else(|| anyhow!("missing entry in response"))?;
1232 worktree
1233 .update(&mut cx, |worktree, cx| {
1234 worktree.as_remote_mut().unwrap().insert_entry(
1235 entry,
1236 response.worktree_scan_id as usize,
1237 cx,
1238 )
1239 })
1240 .await
1241 }))
1242 }
1243 }
1244
1245 pub fn rename_entry(
1246 &mut self,
1247 entry_id: ProjectEntryId,
1248 new_path: impl Into<Arc<Path>>,
1249 cx: &mut ModelContext<Self>,
1250 ) -> Option<Task<Result<Entry>>> {
1251 let worktree = self.worktree_for_entry(entry_id, cx)?;
1252 let new_path = new_path.into();
1253 if self.is_local() {
1254 worktree.update(cx, |worktree, cx| {
1255 worktree
1256 .as_local_mut()
1257 .unwrap()
1258 .rename_entry(entry_id, new_path, cx)
1259 })
1260 } else {
1261 let client = self.client.clone();
1262 let project_id = self.remote_id().unwrap();
1263
1264 Some(cx.spawn_weak(|_, mut cx| async move {
1265 let response = client
1266 .request(proto::RenameProjectEntry {
1267 project_id,
1268 entry_id: entry_id.to_proto(),
1269 new_path: new_path.as_os_str().as_bytes().to_vec(),
1270 })
1271 .await?;
1272 let entry = response
1273 .entry
1274 .ok_or_else(|| anyhow!("missing entry in response"))?;
1275 worktree
1276 .update(&mut cx, |worktree, cx| {
1277 worktree.as_remote_mut().unwrap().insert_entry(
1278 entry,
1279 response.worktree_scan_id as usize,
1280 cx,
1281 )
1282 })
1283 .await
1284 }))
1285 }
1286 }
1287
1288 pub fn delete_entry(
1289 &mut self,
1290 entry_id: ProjectEntryId,
1291 cx: &mut ModelContext<Self>,
1292 ) -> Option<Task<Result<()>>> {
1293 let worktree = self.worktree_for_entry(entry_id, cx)?;
1294 if self.is_local() {
1295 worktree.update(cx, |worktree, cx| {
1296 worktree.as_local_mut().unwrap().delete_entry(entry_id, cx)
1297 })
1298 } else {
1299 let client = self.client.clone();
1300 let project_id = self.remote_id().unwrap();
1301 Some(cx.spawn_weak(|_, mut cx| async move {
1302 let response = client
1303 .request(proto::DeleteProjectEntry {
1304 project_id,
1305 entry_id: entry_id.to_proto(),
1306 })
1307 .await?;
1308 worktree
1309 .update(&mut cx, move |worktree, cx| {
1310 worktree.as_remote_mut().unwrap().delete_entry(
1311 entry_id,
1312 response.worktree_scan_id as usize,
1313 cx,
1314 )
1315 })
1316 .await
1317 }))
1318 }
1319 }
1320
1321 fn share(&mut self, cx: &mut ModelContext<Self>) -> Task<Result<()>> {
1322 if !self.is_online() {
1323 return Task::ready(Err(anyhow!("can't share an offline project")));
1324 }
1325
1326 let project_id;
1327 if let ProjectClientState::Local {
1328 remote_id_rx,
1329 is_shared,
1330 ..
1331 } = &mut self.client_state
1332 {
1333 if *is_shared {
1334 return Task::ready(Ok(()));
1335 }
1336 *is_shared = true;
1337 if let Some(id) = *remote_id_rx.borrow() {
1338 project_id = id;
1339 } else {
1340 return Task::ready(Err(anyhow!("project hasn't been registered")));
1341 }
1342 } else {
1343 return Task::ready(Err(anyhow!("can't share a remote project")));
1344 };
1345
1346 for open_buffer in self.opened_buffers.values_mut() {
1347 match open_buffer {
1348 OpenBuffer::Strong(_) => {}
1349 OpenBuffer::Weak(buffer) => {
1350 if let Some(buffer) = buffer.upgrade(cx) {
1351 *open_buffer = OpenBuffer::Strong(buffer);
1352 }
1353 }
1354 OpenBuffer::Operations(_) => unreachable!(),
1355 }
1356 }
1357
1358 for worktree_handle in self.worktrees.iter_mut() {
1359 match worktree_handle {
1360 WorktreeHandle::Strong(_) => {}
1361 WorktreeHandle::Weak(worktree) => {
1362 if let Some(worktree) = worktree.upgrade(cx) {
1363 *worktree_handle = WorktreeHandle::Strong(worktree);
1364 }
1365 }
1366 }
1367 }
1368
1369 let mut tasks = Vec::new();
1370 for worktree in self.worktrees(cx).collect::<Vec<_>>() {
1371 worktree.update(cx, |worktree, cx| {
1372 let worktree = worktree.as_local_mut().unwrap();
1373 tasks.push(worktree.share(project_id, cx));
1374 });
1375 }
1376
1377 for (server_id, status) in &self.language_server_statuses {
1378 self.client
1379 .send(proto::StartLanguageServer {
1380 project_id,
1381 server: Some(proto::LanguageServer {
1382 id: *server_id as u64,
1383 name: status.name.clone(),
1384 }),
1385 })
1386 .log_err();
1387 }
1388
1389 cx.spawn(|this, mut cx| async move {
1390 for task in tasks {
1391 task.await?;
1392 }
1393 this.update(&mut cx, |_, cx| cx.notify());
1394 Ok(())
1395 })
1396 }
1397
1398 fn unshared(&mut self, cx: &mut ModelContext<Self>) {
1399 if let ProjectClientState::Local { is_shared, .. } = &mut self.client_state {
1400 if !*is_shared {
1401 return;
1402 }
1403
1404 *is_shared = false;
1405 self.collaborators.clear();
1406 self.shared_buffers.clear();
1407 for worktree_handle in self.worktrees.iter_mut() {
1408 if let WorktreeHandle::Strong(worktree) = worktree_handle {
1409 let is_visible = worktree.update(cx, |worktree, _| {
1410 worktree.as_local_mut().unwrap().unshare();
1411 worktree.is_visible()
1412 });
1413 if !is_visible {
1414 *worktree_handle = WorktreeHandle::Weak(worktree.downgrade());
1415 }
1416 }
1417 }
1418
1419 for open_buffer in self.opened_buffers.values_mut() {
1420 if let OpenBuffer::Strong(buffer) = open_buffer {
1421 *open_buffer = OpenBuffer::Weak(buffer.downgrade());
1422 }
1423 }
1424
1425 cx.notify();
1426 } else {
1427 log::error!("attempted to unshare a remote project");
1428 }
1429 }
1430
1431 pub fn respond_to_join_request(
1432 &mut self,
1433 requester_id: u64,
1434 allow: bool,
1435 cx: &mut ModelContext<Self>,
1436 ) {
1437 if let Some(project_id) = self.remote_id() {
1438 let share = if self.is_online() && allow {
1439 Some(self.share(cx))
1440 } else {
1441 None
1442 };
1443 let client = self.client.clone();
1444 cx.foreground()
1445 .spawn(async move {
1446 client.send(proto::RespondToJoinProjectRequest {
1447 requester_id,
1448 project_id,
1449 allow,
1450 })?;
1451 if let Some(share) = share {
1452 share.await?;
1453 }
1454 anyhow::Ok(())
1455 })
1456 .detach_and_log_err(cx);
1457 }
1458 }
1459
1460 fn disconnected_from_host(&mut self, cx: &mut ModelContext<Self>) {
1461 if let ProjectClientState::Remote {
1462 sharing_has_stopped,
1463 ..
1464 } = &mut self.client_state
1465 {
1466 *sharing_has_stopped = true;
1467 self.collaborators.clear();
1468 for worktree in &self.worktrees {
1469 if let Some(worktree) = worktree.upgrade(cx) {
1470 worktree.update(cx, |worktree, _| {
1471 if let Some(worktree) = worktree.as_remote_mut() {
1472 worktree.disconnected_from_host();
1473 }
1474 });
1475 }
1476 }
1477 cx.emit(Event::DisconnectedFromHost);
1478 cx.notify();
1479
1480 // Wake up all futures currently waiting on a buffer to get opened,
1481 // to give them a chance to fail now that we've disconnected.
1482 *self.opened_buffer.0.borrow_mut() = ();
1483 }
1484 }
1485
1486 pub fn is_read_only(&self) -> bool {
1487 match &self.client_state {
1488 ProjectClientState::Local { .. } => false,
1489 ProjectClientState::Remote {
1490 sharing_has_stopped,
1491 ..
1492 } => *sharing_has_stopped,
1493 }
1494 }
1495
1496 pub fn is_local(&self) -> bool {
1497 match &self.client_state {
1498 ProjectClientState::Local { .. } => true,
1499 ProjectClientState::Remote { .. } => false,
1500 }
1501 }
1502
1503 pub fn is_remote(&self) -> bool {
1504 !self.is_local()
1505 }
1506
1507 pub fn create_buffer(
1508 &mut self,
1509 text: &str,
1510 language: Option<Arc<Language>>,
1511 cx: &mut ModelContext<Self>,
1512 ) -> Result<ModelHandle<Buffer>> {
1513 if self.is_remote() {
1514 return Err(anyhow!("creating buffers as a guest is not supported yet"));
1515 }
1516
1517 let buffer = cx.add_model(|cx| {
1518 Buffer::new(self.replica_id(), text, cx)
1519 .with_language(language.unwrap_or_else(|| language::PLAIN_TEXT.clone()), cx)
1520 });
1521 self.register_buffer(&buffer, cx)?;
1522 Ok(buffer)
1523 }
1524
1525 pub fn open_path(
1526 &mut self,
1527 path: impl Into<ProjectPath>,
1528 cx: &mut ModelContext<Self>,
1529 ) -> Task<Result<(ProjectEntryId, AnyModelHandle)>> {
1530 let task = self.open_buffer(path, cx);
1531 cx.spawn_weak(|_, cx| async move {
1532 let buffer = task.await?;
1533 let project_entry_id = buffer
1534 .read_with(&cx, |buffer, cx| {
1535 File::from_dyn(buffer.file()).and_then(|file| file.project_entry_id(cx))
1536 })
1537 .ok_or_else(|| anyhow!("no project entry"))?;
1538 Ok((project_entry_id, buffer.into()))
1539 })
1540 }
1541
1542 pub fn open_local_buffer(
1543 &mut self,
1544 abs_path: impl AsRef<Path>,
1545 cx: &mut ModelContext<Self>,
1546 ) -> Task<Result<ModelHandle<Buffer>>> {
1547 if let Some((worktree, relative_path)) = self.find_local_worktree(abs_path.as_ref(), cx) {
1548 self.open_buffer((worktree.read(cx).id(), relative_path), cx)
1549 } else {
1550 Task::ready(Err(anyhow!("no such path")))
1551 }
1552 }
1553
1554 pub fn open_buffer(
1555 &mut self,
1556 path: impl Into<ProjectPath>,
1557 cx: &mut ModelContext<Self>,
1558 ) -> Task<Result<ModelHandle<Buffer>>> {
1559 let project_path = path.into();
1560 let worktree = if let Some(worktree) = self.worktree_for_id(project_path.worktree_id, cx) {
1561 worktree
1562 } else {
1563 return Task::ready(Err(anyhow!("no such worktree")));
1564 };
1565
1566 // If there is already a buffer for the given path, then return it.
1567 let existing_buffer = self.get_open_buffer(&project_path, cx);
1568 if let Some(existing_buffer) = existing_buffer {
1569 return Task::ready(Ok(existing_buffer));
1570 }
1571
1572 let mut loading_watch = match self.loading_buffers.entry(project_path.clone()) {
1573 // If the given path is already being loaded, then wait for that existing
1574 // task to complete and return the same buffer.
1575 hash_map::Entry::Occupied(e) => e.get().clone(),
1576
1577 // Otherwise, record the fact that this path is now being loaded.
1578 hash_map::Entry::Vacant(entry) => {
1579 let (mut tx, rx) = postage::watch::channel();
1580 entry.insert(rx.clone());
1581
1582 let load_buffer = if worktree.read(cx).is_local() {
1583 self.open_local_buffer_internal(&project_path.path, &worktree, cx)
1584 } else {
1585 self.open_remote_buffer_internal(&project_path.path, &worktree, cx)
1586 };
1587
1588 cx.spawn(move |this, mut cx| async move {
1589 let load_result = load_buffer.await;
1590 *tx.borrow_mut() = Some(this.update(&mut cx, |this, _| {
1591 // Record the fact that the buffer is no longer loading.
1592 this.loading_buffers.remove(&project_path);
1593 let buffer = load_result.map_err(Arc::new)?;
1594 Ok(buffer)
1595 }));
1596 })
1597 .detach();
1598 rx
1599 }
1600 };
1601
1602 cx.foreground().spawn(async move {
1603 loop {
1604 if let Some(result) = loading_watch.borrow().as_ref() {
1605 match result {
1606 Ok(buffer) => return Ok(buffer.clone()),
1607 Err(error) => return Err(anyhow!("{}", error)),
1608 }
1609 }
1610 loading_watch.next().await;
1611 }
1612 })
1613 }
1614
1615 fn open_local_buffer_internal(
1616 &mut self,
1617 path: &Arc<Path>,
1618 worktree: &ModelHandle<Worktree>,
1619 cx: &mut ModelContext<Self>,
1620 ) -> Task<Result<ModelHandle<Buffer>>> {
1621 let load_buffer = worktree.update(cx, |worktree, cx| {
1622 let worktree = worktree.as_local_mut().unwrap();
1623 worktree.load_buffer(path, cx)
1624 });
1625 cx.spawn(|this, mut cx| async move {
1626 let buffer = load_buffer.await?;
1627 this.update(&mut cx, |this, cx| this.register_buffer(&buffer, cx))?;
1628 Ok(buffer)
1629 })
1630 }
1631
1632 fn open_remote_buffer_internal(
1633 &mut self,
1634 path: &Arc<Path>,
1635 worktree: &ModelHandle<Worktree>,
1636 cx: &mut ModelContext<Self>,
1637 ) -> Task<Result<ModelHandle<Buffer>>> {
1638 let rpc = self.client.clone();
1639 let project_id = self.remote_id().unwrap();
1640 let remote_worktree_id = worktree.read(cx).id();
1641 let path = path.clone();
1642 let path_string = path.to_string_lossy().to_string();
1643 cx.spawn(|this, mut cx| async move {
1644 let response = rpc
1645 .request(proto::OpenBufferByPath {
1646 project_id,
1647 worktree_id: remote_worktree_id.to_proto(),
1648 path: path_string,
1649 })
1650 .await?;
1651 this.update(&mut cx, |this, cx| {
1652 this.wait_for_buffer(response.buffer_id, cx)
1653 })
1654 .await
1655 })
1656 }
1657
1658 /// LanguageServerName is owned, because it is inserted into a map
1659 fn open_local_buffer_via_lsp(
1660 &mut self,
1661 abs_path: lsp::Url,
1662 language_server_id: usize,
1663 language_server_name: LanguageServerName,
1664 cx: &mut ModelContext<Self>,
1665 ) -> Task<Result<ModelHandle<Buffer>>> {
1666 cx.spawn(|this, mut cx| async move {
1667 let abs_path = abs_path
1668 .to_file_path()
1669 .map_err(|_| anyhow!("can't convert URI to path"))?;
1670 let (worktree, relative_path) = if let Some(result) =
1671 this.read_with(&cx, |this, cx| this.find_local_worktree(&abs_path, cx))
1672 {
1673 result
1674 } else {
1675 let worktree = this
1676 .update(&mut cx, |this, cx| {
1677 this.create_local_worktree(&abs_path, false, cx)
1678 })
1679 .await?;
1680 this.update(&mut cx, |this, cx| {
1681 this.language_server_ids.insert(
1682 (worktree.read(cx).id(), language_server_name),
1683 language_server_id,
1684 );
1685 });
1686 (worktree, PathBuf::new())
1687 };
1688
1689 let project_path = ProjectPath {
1690 worktree_id: worktree.read_with(&cx, |worktree, _| worktree.id()),
1691 path: relative_path.into(),
1692 };
1693 this.update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
1694 .await
1695 })
1696 }
1697
1698 pub fn open_buffer_by_id(
1699 &mut self,
1700 id: u64,
1701 cx: &mut ModelContext<Self>,
1702 ) -> Task<Result<ModelHandle<Buffer>>> {
1703 if let Some(buffer) = self.buffer_for_id(id, cx) {
1704 Task::ready(Ok(buffer))
1705 } else if self.is_local() {
1706 Task::ready(Err(anyhow!("buffer {} does not exist", id)))
1707 } else if let Some(project_id) = self.remote_id() {
1708 let request = self
1709 .client
1710 .request(proto::OpenBufferById { project_id, id });
1711 cx.spawn(|this, mut cx| async move {
1712 let buffer_id = request.await?.buffer_id;
1713 this.update(&mut cx, |this, cx| this.wait_for_buffer(buffer_id, cx))
1714 .await
1715 })
1716 } else {
1717 Task::ready(Err(anyhow!("cannot open buffer while disconnected")))
1718 }
1719 }
1720
1721 pub fn save_buffer_as(
1722 &mut self,
1723 buffer: ModelHandle<Buffer>,
1724 abs_path: PathBuf,
1725 cx: &mut ModelContext<Project>,
1726 ) -> Task<Result<()>> {
1727 let worktree_task = self.find_or_create_local_worktree(&abs_path, true, cx);
1728 let old_path =
1729 File::from_dyn(buffer.read(cx).file()).and_then(|f| Some(f.as_local()?.abs_path(cx)));
1730 cx.spawn(|this, mut cx| async move {
1731 if let Some(old_path) = old_path {
1732 this.update(&mut cx, |this, cx| {
1733 this.unregister_buffer_from_language_server(&buffer, old_path, cx);
1734 });
1735 }
1736 let (worktree, path) = worktree_task.await?;
1737 worktree
1738 .update(&mut cx, |worktree, cx| {
1739 worktree
1740 .as_local_mut()
1741 .unwrap()
1742 .save_buffer_as(buffer.clone(), path, cx)
1743 })
1744 .await?;
1745 this.update(&mut cx, |this, cx| {
1746 this.assign_language_to_buffer(&buffer, cx);
1747 this.register_buffer_with_language_server(&buffer, cx);
1748 });
1749 Ok(())
1750 })
1751 }
1752
1753 pub fn get_open_buffer(
1754 &mut self,
1755 path: &ProjectPath,
1756 cx: &mut ModelContext<Self>,
1757 ) -> Option<ModelHandle<Buffer>> {
1758 let worktree = self.worktree_for_id(path.worktree_id, cx)?;
1759 self.opened_buffers.values().find_map(|buffer| {
1760 let buffer = buffer.upgrade(cx)?;
1761 let file = File::from_dyn(buffer.read(cx).file())?;
1762 if file.worktree == worktree && file.path() == &path.path {
1763 Some(buffer)
1764 } else {
1765 None
1766 }
1767 })
1768 }
1769
1770 fn register_buffer(
1771 &mut self,
1772 buffer: &ModelHandle<Buffer>,
1773 cx: &mut ModelContext<Self>,
1774 ) -> Result<()> {
1775 let remote_id = buffer.read(cx).remote_id();
1776 let open_buffer = if self.is_remote() || self.is_shared() {
1777 OpenBuffer::Strong(buffer.clone())
1778 } else {
1779 OpenBuffer::Weak(buffer.downgrade())
1780 };
1781
1782 match self.opened_buffers.insert(remote_id, open_buffer) {
1783 None => {}
1784 Some(OpenBuffer::Operations(operations)) => {
1785 buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?
1786 }
1787 Some(OpenBuffer::Weak(existing_handle)) => {
1788 if existing_handle.upgrade(cx).is_some() {
1789 Err(anyhow!(
1790 "already registered buffer with remote id {}",
1791 remote_id
1792 ))?
1793 }
1794 }
1795 Some(OpenBuffer::Strong(_)) => Err(anyhow!(
1796 "already registered buffer with remote id {}",
1797 remote_id
1798 ))?,
1799 }
1800 cx.subscribe(buffer, |this, buffer, event, cx| {
1801 this.on_buffer_event(buffer, event, cx);
1802 })
1803 .detach();
1804
1805 self.assign_language_to_buffer(buffer, cx);
1806 self.register_buffer_with_language_server(buffer, cx);
1807 cx.observe_release(buffer, |this, buffer, cx| {
1808 if let Some(file) = File::from_dyn(buffer.file()) {
1809 if file.is_local() {
1810 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1811 if let Some((_, server)) = this.language_server_for_buffer(buffer, cx) {
1812 server
1813 .notify::<lsp::notification::DidCloseTextDocument>(
1814 lsp::DidCloseTextDocumentParams {
1815 text_document: lsp::TextDocumentIdentifier::new(uri),
1816 },
1817 )
1818 .log_err();
1819 }
1820 }
1821 }
1822 })
1823 .detach();
1824
1825 *self.opened_buffer.0.borrow_mut() = ();
1826 Ok(())
1827 }
1828
1829 fn register_buffer_with_language_server(
1830 &mut self,
1831 buffer_handle: &ModelHandle<Buffer>,
1832 cx: &mut ModelContext<Self>,
1833 ) {
1834 let buffer = buffer_handle.read(cx);
1835 let buffer_id = buffer.remote_id();
1836 if let Some(file) = File::from_dyn(buffer.file()) {
1837 if file.is_local() {
1838 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
1839 let initial_snapshot = buffer.text_snapshot();
1840
1841 let mut language_server = None;
1842 let mut language_id = None;
1843 if let Some(language) = buffer.language() {
1844 let worktree_id = file.worktree_id(cx);
1845 if let Some(adapter) = language.lsp_adapter() {
1846 language_id = adapter.language_ids.get(language.name().as_ref()).cloned();
1847 language_server = self
1848 .language_server_ids
1849 .get(&(worktree_id, adapter.name.clone()))
1850 .and_then(|id| self.language_servers.get(id))
1851 .and_then(|server_state| {
1852 if let LanguageServerState::Running { server, .. } = server_state {
1853 Some(server.clone())
1854 } else {
1855 None
1856 }
1857 });
1858 }
1859 }
1860
1861 if let Some(local_worktree) = file.worktree.read(cx).as_local() {
1862 if let Some(diagnostics) = local_worktree.diagnostics_for_path(file.path()) {
1863 self.update_buffer_diagnostics(buffer_handle, diagnostics, None, cx)
1864 .log_err();
1865 }
1866 }
1867
1868 if let Some(server) = language_server {
1869 server
1870 .notify::<lsp::notification::DidOpenTextDocument>(
1871 lsp::DidOpenTextDocumentParams {
1872 text_document: lsp::TextDocumentItem::new(
1873 uri,
1874 language_id.unwrap_or_default(),
1875 0,
1876 initial_snapshot.text(),
1877 ),
1878 },
1879 )
1880 .log_err();
1881 buffer_handle.update(cx, |buffer, cx| {
1882 buffer.set_completion_triggers(
1883 server
1884 .capabilities()
1885 .completion_provider
1886 .as_ref()
1887 .and_then(|provider| provider.trigger_characters.clone())
1888 .unwrap_or_default(),
1889 cx,
1890 )
1891 });
1892 self.buffer_snapshots
1893 .insert(buffer_id, vec![(0, initial_snapshot)]);
1894 }
1895 }
1896 }
1897 }
1898
1899 fn unregister_buffer_from_language_server(
1900 &mut self,
1901 buffer: &ModelHandle<Buffer>,
1902 old_path: PathBuf,
1903 cx: &mut ModelContext<Self>,
1904 ) {
1905 buffer.update(cx, |buffer, cx| {
1906 buffer.update_diagnostics(Default::default(), cx);
1907 self.buffer_snapshots.remove(&buffer.remote_id());
1908 if let Some((_, language_server)) = self.language_server_for_buffer(buffer, cx) {
1909 language_server
1910 .notify::<lsp::notification::DidCloseTextDocument>(
1911 lsp::DidCloseTextDocumentParams {
1912 text_document: lsp::TextDocumentIdentifier::new(
1913 lsp::Url::from_file_path(old_path).unwrap(),
1914 ),
1915 },
1916 )
1917 .log_err();
1918 }
1919 });
1920 }
1921
1922 fn on_buffer_event(
1923 &mut self,
1924 buffer: ModelHandle<Buffer>,
1925 event: &BufferEvent,
1926 cx: &mut ModelContext<Self>,
1927 ) -> Option<()> {
1928 match event {
1929 BufferEvent::Operation(operation) => {
1930 if let Some(project_id) = self.shared_remote_id() {
1931 let request = self.client.request(proto::UpdateBuffer {
1932 project_id,
1933 buffer_id: buffer.read(cx).remote_id(),
1934 operations: vec![language::proto::serialize_operation(operation)],
1935 });
1936 cx.background().spawn(request).detach_and_log_err(cx);
1937 } else if let Some(project_id) = self.remote_id() {
1938 let _ = self
1939 .client
1940 .send(proto::RegisterProjectActivity { project_id });
1941 }
1942 }
1943 BufferEvent::Edited { .. } => {
1944 let language_server = self
1945 .language_server_for_buffer(buffer.read(cx), cx)
1946 .map(|(_, server)| server.clone())?;
1947 let buffer = buffer.read(cx);
1948 let file = File::from_dyn(buffer.file())?;
1949 let abs_path = file.as_local()?.abs_path(cx);
1950 let uri = lsp::Url::from_file_path(abs_path).unwrap();
1951 let buffer_snapshots = self.buffer_snapshots.get_mut(&buffer.remote_id())?;
1952 let (version, prev_snapshot) = buffer_snapshots.last()?;
1953 let next_snapshot = buffer.text_snapshot();
1954 let next_version = version + 1;
1955
1956 let content_changes = buffer
1957 .edits_since::<(PointUtf16, usize)>(prev_snapshot.version())
1958 .map(|edit| {
1959 let edit_start = edit.new.start.0;
1960 let edit_end = edit_start + (edit.old.end.0 - edit.old.start.0);
1961 let new_text = next_snapshot
1962 .text_for_range(edit.new.start.1..edit.new.end.1)
1963 .collect();
1964 lsp::TextDocumentContentChangeEvent {
1965 range: Some(lsp::Range::new(
1966 point_to_lsp(edit_start),
1967 point_to_lsp(edit_end),
1968 )),
1969 range_length: None,
1970 text: new_text,
1971 }
1972 })
1973 .collect();
1974
1975 buffer_snapshots.push((next_version, next_snapshot));
1976
1977 language_server
1978 .notify::<lsp::notification::DidChangeTextDocument>(
1979 lsp::DidChangeTextDocumentParams {
1980 text_document: lsp::VersionedTextDocumentIdentifier::new(
1981 uri,
1982 next_version,
1983 ),
1984 content_changes,
1985 },
1986 )
1987 .log_err();
1988 }
1989 BufferEvent::Saved => {
1990 let file = File::from_dyn(buffer.read(cx).file())?;
1991 let worktree_id = file.worktree_id(cx);
1992 let abs_path = file.as_local()?.abs_path(cx);
1993 let text_document = lsp::TextDocumentIdentifier {
1994 uri: lsp::Url::from_file_path(abs_path).unwrap(),
1995 };
1996
1997 for (_, _, server) in self.language_servers_for_worktree(worktree_id) {
1998 server
1999 .notify::<lsp::notification::DidSaveTextDocument>(
2000 lsp::DidSaveTextDocumentParams {
2001 text_document: text_document.clone(),
2002 text: None,
2003 },
2004 )
2005 .log_err();
2006 }
2007
2008 // After saving a buffer, simulate disk-based diagnostics being finished for languages
2009 // that don't support a disk-based progress token.
2010 let (lsp_adapter, language_server) =
2011 self.language_server_for_buffer(buffer.read(cx), cx)?;
2012 if lsp_adapter.disk_based_diagnostics_progress_token.is_none() {
2013 let server_id = language_server.server_id();
2014 self.disk_based_diagnostics_finished(server_id, cx);
2015 self.broadcast_language_server_update(
2016 server_id,
2017 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
2018 proto::LspDiskBasedDiagnosticsUpdated {},
2019 ),
2020 );
2021 }
2022 }
2023 _ => {}
2024 }
2025
2026 None
2027 }
2028
2029 fn language_servers_for_worktree(
2030 &self,
2031 worktree_id: WorktreeId,
2032 ) -> impl Iterator<Item = (&Arc<CachedLspAdapter>, &Arc<Language>, &Arc<LanguageServer>)> {
2033 self.language_server_ids
2034 .iter()
2035 .filter_map(move |((language_server_worktree_id, _), id)| {
2036 if *language_server_worktree_id == worktree_id {
2037 if let Some(LanguageServerState::Running {
2038 adapter,
2039 language,
2040 server,
2041 }) = self.language_servers.get(id)
2042 {
2043 return Some((adapter, language, server));
2044 }
2045 }
2046 None
2047 })
2048 }
2049
2050 fn maintain_buffer_languages(
2051 languages: &LanguageRegistry,
2052 cx: &mut ModelContext<Project>,
2053 ) -> Task<()> {
2054 let mut subscription = languages.subscribe();
2055 cx.spawn_weak(|project, mut cx| async move {
2056 while let Some(()) = subscription.next().await {
2057 if let Some(project) = project.upgrade(&cx) {
2058 project.update(&mut cx, |project, cx| {
2059 let mut buffers_without_language = Vec::new();
2060 for buffer in project.opened_buffers.values() {
2061 if let Some(buffer) = buffer.upgrade(cx) {
2062 if buffer.read(cx).language().is_none() {
2063 buffers_without_language.push(buffer);
2064 }
2065 }
2066 }
2067
2068 for buffer in buffers_without_language {
2069 project.assign_language_to_buffer(&buffer, cx);
2070 project.register_buffer_with_language_server(&buffer, cx);
2071 }
2072 });
2073 }
2074 }
2075 })
2076 }
2077
2078 fn assign_language_to_buffer(
2079 &mut self,
2080 buffer: &ModelHandle<Buffer>,
2081 cx: &mut ModelContext<Self>,
2082 ) -> Option<()> {
2083 // If the buffer has a language, set it and start the language server if we haven't already.
2084 let full_path = buffer.read(cx).file()?.full_path(cx);
2085 let language = self.languages.select_language(&full_path)?;
2086 buffer.update(cx, |buffer, cx| {
2087 buffer.set_language_registry(self.languages.clone());
2088 buffer.set_language(Some(language.clone()), cx);
2089 });
2090
2091 let file = File::from_dyn(buffer.read(cx).file())?;
2092 let worktree = file.worktree.read(cx).as_local()?;
2093 let worktree_id = worktree.id();
2094 let worktree_abs_path = worktree.abs_path().clone();
2095 self.start_language_server(worktree_id, worktree_abs_path, language, cx);
2096
2097 None
2098 }
2099
2100 fn merge_json_value_into(source: serde_json::Value, target: &mut serde_json::Value) {
2101 use serde_json::Value;
2102
2103 match (source, target) {
2104 (Value::Object(source), Value::Object(target)) => {
2105 for (key, value) in source {
2106 if let Some(target) = target.get_mut(&key) {
2107 Self::merge_json_value_into(value, target);
2108 } else {
2109 target.insert(key.clone(), value);
2110 }
2111 }
2112 }
2113
2114 (source, target) => *target = source,
2115 }
2116 }
2117
2118 fn start_language_server(
2119 &mut self,
2120 worktree_id: WorktreeId,
2121 worktree_path: Arc<Path>,
2122 language: Arc<Language>,
2123 cx: &mut ModelContext<Self>,
2124 ) {
2125 if !cx
2126 .global::<Settings>()
2127 .enable_language_server(Some(&language.name()))
2128 {
2129 return;
2130 }
2131
2132 let adapter = if let Some(adapter) = language.lsp_adapter() {
2133 adapter
2134 } else {
2135 return;
2136 };
2137 let key = (worktree_id, adapter.name.clone());
2138
2139 let mut initialization_options = adapter.initialization_options.clone();
2140
2141 let lsp = &cx.global::<Settings>().lsp.get(&adapter.name.0);
2142 let override_options = lsp.map(|s| s.initialization_options.clone()).flatten();
2143 match (&mut initialization_options, override_options) {
2144 (Some(initialization_options), Some(override_options)) => {
2145 Self::merge_json_value_into(override_options, initialization_options);
2146 }
2147
2148 (None, override_options) => initialization_options = override_options,
2149
2150 _ => {}
2151 }
2152
2153 self.language_server_ids
2154 .entry(key.clone())
2155 .or_insert_with(|| {
2156 let server_id = post_inc(&mut self.next_language_server_id);
2157 let language_server = self.languages.start_language_server(
2158 server_id,
2159 language.clone(),
2160 worktree_path,
2161 self.client.http_client(),
2162 cx,
2163 );
2164 self.language_servers.insert(
2165 server_id,
2166 LanguageServerState::Starting(cx.spawn_weak(|this, mut cx| async move {
2167 let language_server = language_server?.await.log_err()?;
2168 let language_server = language_server
2169 .initialize(initialization_options)
2170 .await
2171 .log_err()?;
2172 let this = this.upgrade(&cx)?;
2173
2174 language_server
2175 .on_notification::<lsp::notification::PublishDiagnostics, _>({
2176 let this = this.downgrade();
2177 let adapter = adapter.clone();
2178 move |mut params, cx| {
2179 let this = this;
2180 let adapter = adapter.clone();
2181 cx.spawn(|mut cx| async move {
2182 adapter.process_diagnostics(&mut params).await;
2183 if let Some(this) = this.upgrade(&cx) {
2184 this.update(&mut cx, |this, cx| {
2185 this.update_diagnostics(
2186 server_id,
2187 params,
2188 &adapter.disk_based_diagnostic_sources,
2189 cx,
2190 )
2191 .log_err();
2192 });
2193 }
2194 })
2195 .detach();
2196 }
2197 })
2198 .detach();
2199
2200 language_server
2201 .on_request::<lsp::request::WorkspaceConfiguration, _, _>({
2202 let settings = this.read_with(&cx, |this, _| {
2203 this.language_server_settings.clone()
2204 });
2205 move |params, _| {
2206 let settings = settings.lock().clone();
2207 async move {
2208 Ok(params
2209 .items
2210 .into_iter()
2211 .map(|item| {
2212 if let Some(section) = &item.section {
2213 settings
2214 .get(section)
2215 .cloned()
2216 .unwrap_or(serde_json::Value::Null)
2217 } else {
2218 settings.clone()
2219 }
2220 })
2221 .collect())
2222 }
2223 }
2224 })
2225 .detach();
2226
2227 // Even though we don't have handling for these requests, respond to them to
2228 // avoid stalling any language server like `gopls` which waits for a response
2229 // to these requests when initializing.
2230 language_server
2231 .on_request::<lsp::request::WorkDoneProgressCreate, _, _>({
2232 let this = this.downgrade();
2233 move |params, mut cx| async move {
2234 if let Some(this) = this.upgrade(&cx) {
2235 this.update(&mut cx, |this, _| {
2236 if let Some(status) =
2237 this.language_server_statuses.get_mut(&server_id)
2238 {
2239 if let lsp::NumberOrString::String(token) =
2240 params.token
2241 {
2242 status.progress_tokens.insert(token);
2243 }
2244 }
2245 });
2246 }
2247 Ok(())
2248 }
2249 })
2250 .detach();
2251 language_server
2252 .on_request::<lsp::request::RegisterCapability, _, _>(|_, _| async {
2253 Ok(())
2254 })
2255 .detach();
2256
2257 language_server
2258 .on_request::<lsp::request::ApplyWorkspaceEdit, _, _>({
2259 let this = this.downgrade();
2260 let adapter = adapter.clone();
2261 let language_server = language_server.clone();
2262 move |params, cx| {
2263 Self::on_lsp_workspace_edit(
2264 this,
2265 params,
2266 server_id,
2267 adapter.clone(),
2268 language_server.clone(),
2269 cx,
2270 )
2271 }
2272 })
2273 .detach();
2274
2275 let disk_based_diagnostics_progress_token =
2276 adapter.disk_based_diagnostics_progress_token.clone();
2277
2278 language_server
2279 .on_notification::<lsp::notification::Progress, _>({
2280 let this = this.downgrade();
2281 move |params, mut cx| {
2282 if let Some(this) = this.upgrade(&cx) {
2283 this.update(&mut cx, |this, cx| {
2284 this.on_lsp_progress(
2285 params,
2286 server_id,
2287 disk_based_diagnostics_progress_token.clone(),
2288 cx,
2289 );
2290 });
2291 }
2292 }
2293 })
2294 .detach();
2295
2296 this.update(&mut cx, |this, cx| {
2297 // If the language server for this key doesn't match the server id, don't store the
2298 // server. Which will cause it to be dropped, killing the process
2299 if this
2300 .language_server_ids
2301 .get(&key)
2302 .map(|id| id != &server_id)
2303 .unwrap_or(false)
2304 {
2305 return None;
2306 }
2307
2308 // Update language_servers collection with Running variant of LanguageServerState
2309 // indicating that the server is up and running and ready
2310 this.language_servers.insert(
2311 server_id,
2312 LanguageServerState::Running {
2313 adapter: adapter.clone(),
2314 language,
2315 server: language_server.clone(),
2316 },
2317 );
2318 this.language_server_statuses.insert(
2319 server_id,
2320 LanguageServerStatus {
2321 name: language_server.name().to_string(),
2322 pending_work: Default::default(),
2323 has_pending_diagnostic_updates: false,
2324 progress_tokens: Default::default(),
2325 },
2326 );
2327 language_server
2328 .notify::<lsp::notification::DidChangeConfiguration>(
2329 lsp::DidChangeConfigurationParams {
2330 settings: this.language_server_settings.lock().clone(),
2331 },
2332 )
2333 .ok();
2334
2335 if let Some(project_id) = this.shared_remote_id() {
2336 this.client
2337 .send(proto::StartLanguageServer {
2338 project_id,
2339 server: Some(proto::LanguageServer {
2340 id: server_id as u64,
2341 name: language_server.name().to_string(),
2342 }),
2343 })
2344 .log_err();
2345 }
2346
2347 // Tell the language server about every open buffer in the worktree that matches the language.
2348 for buffer in this.opened_buffers.values() {
2349 if let Some(buffer_handle) = buffer.upgrade(cx) {
2350 let buffer = buffer_handle.read(cx);
2351 let file = if let Some(file) = File::from_dyn(buffer.file()) {
2352 file
2353 } else {
2354 continue;
2355 };
2356 let language = if let Some(language) = buffer.language() {
2357 language
2358 } else {
2359 continue;
2360 };
2361 if file.worktree.read(cx).id() != key.0
2362 || language.lsp_adapter().map(|a| a.name.clone())
2363 != Some(key.1.clone())
2364 {
2365 continue;
2366 }
2367
2368 let file = file.as_local()?;
2369 let versions = this
2370 .buffer_snapshots
2371 .entry(buffer.remote_id())
2372 .or_insert_with(|| vec![(0, buffer.text_snapshot())]);
2373 let (version, initial_snapshot) = versions.last().unwrap();
2374 let uri = lsp::Url::from_file_path(file.abs_path(cx)).unwrap();
2375 language_server
2376 .notify::<lsp::notification::DidOpenTextDocument>(
2377 lsp::DidOpenTextDocumentParams {
2378 text_document: lsp::TextDocumentItem::new(
2379 uri,
2380 adapter
2381 .language_ids
2382 .get(language.name().as_ref())
2383 .cloned()
2384 .unwrap_or_default(),
2385 *version,
2386 initial_snapshot.text(),
2387 ),
2388 },
2389 )
2390 .log_err()?;
2391 buffer_handle.update(cx, |buffer, cx| {
2392 buffer.set_completion_triggers(
2393 language_server
2394 .capabilities()
2395 .completion_provider
2396 .as_ref()
2397 .and_then(|provider| {
2398 provider.trigger_characters.clone()
2399 })
2400 .unwrap_or_default(),
2401 cx,
2402 )
2403 });
2404 }
2405 }
2406
2407 cx.notify();
2408 Some(language_server)
2409 })
2410 })),
2411 );
2412
2413 server_id
2414 });
2415 }
2416
2417 // Returns a list of all of the worktrees which no longer have a language server and the root path
2418 // for the stopped server
2419 fn stop_language_server(
2420 &mut self,
2421 worktree_id: WorktreeId,
2422 adapter_name: LanguageServerName,
2423 cx: &mut ModelContext<Self>,
2424 ) -> Task<(Option<PathBuf>, Vec<WorktreeId>)> {
2425 let key = (worktree_id, adapter_name);
2426 if let Some(server_id) = self.language_server_ids.remove(&key) {
2427 // Remove other entries for this language server as well
2428 let mut orphaned_worktrees = vec![worktree_id];
2429 let other_keys = self.language_server_ids.keys().cloned().collect::<Vec<_>>();
2430 for other_key in other_keys {
2431 if self.language_server_ids.get(&other_key) == Some(&server_id) {
2432 self.language_server_ids.remove(&other_key);
2433 orphaned_worktrees.push(other_key.0);
2434 }
2435 }
2436
2437 self.language_server_statuses.remove(&server_id);
2438 cx.notify();
2439
2440 let server_state = self.language_servers.remove(&server_id);
2441 cx.spawn_weak(|this, mut cx| async move {
2442 let mut root_path = None;
2443
2444 let server = match server_state {
2445 Some(LanguageServerState::Starting(started_language_server)) => {
2446 started_language_server.await
2447 }
2448 Some(LanguageServerState::Running { server, .. }) => Some(server),
2449 None => None,
2450 };
2451
2452 if let Some(server) = server {
2453 root_path = Some(server.root_path().clone());
2454 if let Some(shutdown) = server.shutdown() {
2455 shutdown.await;
2456 }
2457 }
2458
2459 if let Some(this) = this.upgrade(&cx) {
2460 this.update(&mut cx, |this, cx| {
2461 this.language_server_statuses.remove(&server_id);
2462 cx.notify();
2463 });
2464 }
2465
2466 (root_path, orphaned_worktrees)
2467 })
2468 } else {
2469 Task::ready((None, Vec::new()))
2470 }
2471 }
2472
2473 pub fn restart_language_servers_for_buffers(
2474 &mut self,
2475 buffers: impl IntoIterator<Item = ModelHandle<Buffer>>,
2476 cx: &mut ModelContext<Self>,
2477 ) -> Option<()> {
2478 let language_server_lookup_info: HashSet<(WorktreeId, Arc<Path>, PathBuf)> = buffers
2479 .into_iter()
2480 .filter_map(|buffer| {
2481 let file = File::from_dyn(buffer.read(cx).file())?;
2482 let worktree = file.worktree.read(cx).as_local()?;
2483 let worktree_id = worktree.id();
2484 let worktree_abs_path = worktree.abs_path().clone();
2485 let full_path = file.full_path(cx);
2486 Some((worktree_id, worktree_abs_path, full_path))
2487 })
2488 .collect();
2489 for (worktree_id, worktree_abs_path, full_path) in language_server_lookup_info {
2490 let language = self.languages.select_language(&full_path)?;
2491 self.restart_language_server(worktree_id, worktree_abs_path, language, cx);
2492 }
2493
2494 None
2495 }
2496
2497 fn restart_language_server(
2498 &mut self,
2499 worktree_id: WorktreeId,
2500 fallback_path: Arc<Path>,
2501 language: Arc<Language>,
2502 cx: &mut ModelContext<Self>,
2503 ) {
2504 let adapter = if let Some(adapter) = language.lsp_adapter() {
2505 adapter
2506 } else {
2507 return;
2508 };
2509
2510 let server_name = adapter.name.clone();
2511 let stop = self.stop_language_server(worktree_id, server_name.clone(), cx);
2512 cx.spawn_weak(|this, mut cx| async move {
2513 let (original_root_path, orphaned_worktrees) = stop.await;
2514 if let Some(this) = this.upgrade(&cx) {
2515 this.update(&mut cx, |this, cx| {
2516 // Attempt to restart using original server path. Fallback to passed in
2517 // path if we could not retrieve the root path
2518 let root_path = original_root_path
2519 .map(|path_buf| Arc::from(path_buf.as_path()))
2520 .unwrap_or(fallback_path);
2521
2522 this.start_language_server(worktree_id, root_path, language, cx);
2523
2524 // Lookup new server id and set it for each of the orphaned worktrees
2525 if let Some(new_server_id) = this
2526 .language_server_ids
2527 .get(&(worktree_id, server_name.clone()))
2528 .cloned()
2529 {
2530 for orphaned_worktree in orphaned_worktrees {
2531 this.language_server_ids
2532 .insert((orphaned_worktree, server_name.clone()), new_server_id);
2533 }
2534 }
2535 });
2536 }
2537 })
2538 .detach();
2539 }
2540
2541 fn on_lsp_progress(
2542 &mut self,
2543 progress: lsp::ProgressParams,
2544 server_id: usize,
2545 disk_based_diagnostics_progress_token: Option<String>,
2546 cx: &mut ModelContext<Self>,
2547 ) {
2548 let token = match progress.token {
2549 lsp::NumberOrString::String(token) => token,
2550 lsp::NumberOrString::Number(token) => {
2551 log::info!("skipping numeric progress token {}", token);
2552 return;
2553 }
2554 };
2555 let lsp::ProgressParamsValue::WorkDone(progress) = progress.value;
2556 let language_server_status =
2557 if let Some(status) = self.language_server_statuses.get_mut(&server_id) {
2558 status
2559 } else {
2560 return;
2561 };
2562
2563 if !language_server_status.progress_tokens.contains(&token) {
2564 return;
2565 }
2566
2567 let is_disk_based_diagnostics_progress =
2568 Some(token.as_ref()) == disk_based_diagnostics_progress_token.as_deref();
2569
2570 match progress {
2571 lsp::WorkDoneProgress::Begin(report) => {
2572 if is_disk_based_diagnostics_progress {
2573 language_server_status.has_pending_diagnostic_updates = true;
2574 self.disk_based_diagnostics_started(server_id, cx);
2575 self.broadcast_language_server_update(
2576 server_id,
2577 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(
2578 proto::LspDiskBasedDiagnosticsUpdating {},
2579 ),
2580 );
2581 } else {
2582 self.on_lsp_work_start(
2583 server_id,
2584 token.clone(),
2585 LanguageServerProgress {
2586 message: report.message.clone(),
2587 percentage: report.percentage.map(|p| p as usize),
2588 last_update_at: Instant::now(),
2589 },
2590 cx,
2591 );
2592 self.broadcast_language_server_update(
2593 server_id,
2594 proto::update_language_server::Variant::WorkStart(proto::LspWorkStart {
2595 token,
2596 message: report.message,
2597 percentage: report.percentage.map(|p| p as u32),
2598 }),
2599 );
2600 }
2601 }
2602 lsp::WorkDoneProgress::Report(report) => {
2603 if !is_disk_based_diagnostics_progress {
2604 self.on_lsp_work_progress(
2605 server_id,
2606 token.clone(),
2607 LanguageServerProgress {
2608 message: report.message.clone(),
2609 percentage: report.percentage.map(|p| p as usize),
2610 last_update_at: Instant::now(),
2611 },
2612 cx,
2613 );
2614 self.broadcast_language_server_update(
2615 server_id,
2616 proto::update_language_server::Variant::WorkProgress(
2617 proto::LspWorkProgress {
2618 token,
2619 message: report.message,
2620 percentage: report.percentage.map(|p| p as u32),
2621 },
2622 ),
2623 );
2624 }
2625 }
2626 lsp::WorkDoneProgress::End(_) => {
2627 language_server_status.progress_tokens.remove(&token);
2628
2629 if is_disk_based_diagnostics_progress {
2630 language_server_status.has_pending_diagnostic_updates = false;
2631 self.disk_based_diagnostics_finished(server_id, cx);
2632 self.broadcast_language_server_update(
2633 server_id,
2634 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(
2635 proto::LspDiskBasedDiagnosticsUpdated {},
2636 ),
2637 );
2638 } else {
2639 self.on_lsp_work_end(server_id, token.clone(), cx);
2640 self.broadcast_language_server_update(
2641 server_id,
2642 proto::update_language_server::Variant::WorkEnd(proto::LspWorkEnd {
2643 token,
2644 }),
2645 );
2646 }
2647 }
2648 }
2649 }
2650
2651 fn on_lsp_work_start(
2652 &mut self,
2653 language_server_id: usize,
2654 token: String,
2655 progress: LanguageServerProgress,
2656 cx: &mut ModelContext<Self>,
2657 ) {
2658 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2659 status.pending_work.insert(token, progress);
2660 cx.notify();
2661 }
2662 }
2663
2664 fn on_lsp_work_progress(
2665 &mut self,
2666 language_server_id: usize,
2667 token: String,
2668 progress: LanguageServerProgress,
2669 cx: &mut ModelContext<Self>,
2670 ) {
2671 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2672 let entry = status
2673 .pending_work
2674 .entry(token)
2675 .or_insert(LanguageServerProgress {
2676 message: Default::default(),
2677 percentage: Default::default(),
2678 last_update_at: progress.last_update_at,
2679 });
2680 if progress.message.is_some() {
2681 entry.message = progress.message;
2682 }
2683 if progress.percentage.is_some() {
2684 entry.percentage = progress.percentage;
2685 }
2686 entry.last_update_at = progress.last_update_at;
2687 cx.notify();
2688 }
2689 }
2690
2691 fn on_lsp_work_end(
2692 &mut self,
2693 language_server_id: usize,
2694 token: String,
2695 cx: &mut ModelContext<Self>,
2696 ) {
2697 if let Some(status) = self.language_server_statuses.get_mut(&language_server_id) {
2698 status.pending_work.remove(&token);
2699 cx.notify();
2700 }
2701 }
2702
2703 async fn on_lsp_workspace_edit(
2704 this: WeakModelHandle<Self>,
2705 params: lsp::ApplyWorkspaceEditParams,
2706 server_id: usize,
2707 adapter: Arc<CachedLspAdapter>,
2708 language_server: Arc<LanguageServer>,
2709 mut cx: AsyncAppContext,
2710 ) -> Result<lsp::ApplyWorkspaceEditResponse> {
2711 let this = this
2712 .upgrade(&cx)
2713 .ok_or_else(|| anyhow!("project project closed"))?;
2714 let transaction = Self::deserialize_workspace_edit(
2715 this.clone(),
2716 params.edit,
2717 true,
2718 adapter.clone(),
2719 language_server.clone(),
2720 &mut cx,
2721 )
2722 .await
2723 .log_err();
2724 this.update(&mut cx, |this, _| {
2725 if let Some(transaction) = transaction {
2726 this.last_workspace_edits_by_language_server
2727 .insert(server_id, transaction);
2728 }
2729 });
2730 Ok(lsp::ApplyWorkspaceEditResponse {
2731 applied: true,
2732 failed_change: None,
2733 failure_reason: None,
2734 })
2735 }
2736
2737 fn broadcast_language_server_update(
2738 &self,
2739 language_server_id: usize,
2740 event: proto::update_language_server::Variant,
2741 ) {
2742 if let Some(project_id) = self.shared_remote_id() {
2743 self.client
2744 .send(proto::UpdateLanguageServer {
2745 project_id,
2746 language_server_id: language_server_id as u64,
2747 variant: Some(event),
2748 })
2749 .log_err();
2750 }
2751 }
2752
2753 pub fn set_language_server_settings(&mut self, settings: serde_json::Value) {
2754 for server_state in self.language_servers.values() {
2755 if let LanguageServerState::Running { server, .. } = server_state {
2756 server
2757 .notify::<lsp::notification::DidChangeConfiguration>(
2758 lsp::DidChangeConfigurationParams {
2759 settings: settings.clone(),
2760 },
2761 )
2762 .ok();
2763 }
2764 }
2765 *self.language_server_settings.lock() = settings;
2766 }
2767
2768 pub fn language_server_statuses(
2769 &self,
2770 ) -> impl DoubleEndedIterator<Item = &LanguageServerStatus> {
2771 self.language_server_statuses.values()
2772 }
2773
2774 pub fn update_diagnostics(
2775 &mut self,
2776 language_server_id: usize,
2777 params: lsp::PublishDiagnosticsParams,
2778 disk_based_sources: &[String],
2779 cx: &mut ModelContext<Self>,
2780 ) -> Result<()> {
2781 let abs_path = params
2782 .uri
2783 .to_file_path()
2784 .map_err(|_| anyhow!("URI is not a file"))?;
2785 let mut diagnostics = Vec::default();
2786 let mut primary_diagnostic_group_ids = HashMap::default();
2787 let mut sources_by_group_id = HashMap::default();
2788 let mut supporting_diagnostics = HashMap::default();
2789 for diagnostic in ¶ms.diagnostics {
2790 let source = diagnostic.source.as_ref();
2791 let code = diagnostic.code.as_ref().map(|code| match code {
2792 lsp::NumberOrString::Number(code) => code.to_string(),
2793 lsp::NumberOrString::String(code) => code.clone(),
2794 });
2795 let range = range_from_lsp(diagnostic.range);
2796 let is_supporting = diagnostic
2797 .related_information
2798 .as_ref()
2799 .map_or(false, |infos| {
2800 infos.iter().any(|info| {
2801 primary_diagnostic_group_ids.contains_key(&(
2802 source,
2803 code.clone(),
2804 range_from_lsp(info.location.range),
2805 ))
2806 })
2807 });
2808
2809 let is_unnecessary = diagnostic.tags.as_ref().map_or(false, |tags| {
2810 tags.iter().any(|tag| *tag == DiagnosticTag::UNNECESSARY)
2811 });
2812
2813 if is_supporting {
2814 supporting_diagnostics.insert(
2815 (source, code.clone(), range),
2816 (diagnostic.severity, is_unnecessary),
2817 );
2818 } else {
2819 let group_id = post_inc(&mut self.next_diagnostic_group_id);
2820 let is_disk_based =
2821 source.map_or(false, |source| disk_based_sources.contains(source));
2822
2823 sources_by_group_id.insert(group_id, source);
2824 primary_diagnostic_group_ids
2825 .insert((source, code.clone(), range.clone()), group_id);
2826
2827 diagnostics.push(DiagnosticEntry {
2828 range,
2829 diagnostic: Diagnostic {
2830 code: code.clone(),
2831 severity: diagnostic.severity.unwrap_or(DiagnosticSeverity::ERROR),
2832 message: diagnostic.message.clone(),
2833 group_id,
2834 is_primary: true,
2835 is_valid: true,
2836 is_disk_based,
2837 is_unnecessary,
2838 },
2839 });
2840 if let Some(infos) = &diagnostic.related_information {
2841 for info in infos {
2842 if info.location.uri == params.uri && !info.message.is_empty() {
2843 let range = range_from_lsp(info.location.range);
2844 diagnostics.push(DiagnosticEntry {
2845 range,
2846 diagnostic: Diagnostic {
2847 code: code.clone(),
2848 severity: DiagnosticSeverity::INFORMATION,
2849 message: info.message.clone(),
2850 group_id,
2851 is_primary: false,
2852 is_valid: true,
2853 is_disk_based,
2854 is_unnecessary: false,
2855 },
2856 });
2857 }
2858 }
2859 }
2860 }
2861 }
2862
2863 for entry in &mut diagnostics {
2864 let diagnostic = &mut entry.diagnostic;
2865 if !diagnostic.is_primary {
2866 let source = *sources_by_group_id.get(&diagnostic.group_id).unwrap();
2867 if let Some(&(severity, is_unnecessary)) = supporting_diagnostics.get(&(
2868 source,
2869 diagnostic.code.clone(),
2870 entry.range.clone(),
2871 )) {
2872 if let Some(severity) = severity {
2873 diagnostic.severity = severity;
2874 }
2875 diagnostic.is_unnecessary = is_unnecessary;
2876 }
2877 }
2878 }
2879
2880 self.update_diagnostic_entries(
2881 language_server_id,
2882 abs_path,
2883 params.version,
2884 diagnostics,
2885 cx,
2886 )?;
2887 Ok(())
2888 }
2889
2890 pub fn update_diagnostic_entries(
2891 &mut self,
2892 language_server_id: usize,
2893 abs_path: PathBuf,
2894 version: Option<i32>,
2895 diagnostics: Vec<DiagnosticEntry<PointUtf16>>,
2896 cx: &mut ModelContext<Project>,
2897 ) -> Result<(), anyhow::Error> {
2898 let (worktree, relative_path) = self
2899 .find_local_worktree(&abs_path, cx)
2900 .ok_or_else(|| anyhow!("no worktree found for diagnostics"))?;
2901
2902 let project_path = ProjectPath {
2903 worktree_id: worktree.read(cx).id(),
2904 path: relative_path.into(),
2905 };
2906 if let Some(buffer) = self.get_open_buffer(&project_path, cx) {
2907 self.update_buffer_diagnostics(&buffer, diagnostics.clone(), version, cx)?;
2908 }
2909
2910 let updated = worktree.update(cx, |worktree, cx| {
2911 worktree
2912 .as_local_mut()
2913 .ok_or_else(|| anyhow!("not a local worktree"))?
2914 .update_diagnostics(
2915 language_server_id,
2916 project_path.path.clone(),
2917 diagnostics,
2918 cx,
2919 )
2920 })?;
2921 if updated {
2922 cx.emit(Event::DiagnosticsUpdated {
2923 language_server_id,
2924 path: project_path,
2925 });
2926 }
2927 Ok(())
2928 }
2929
2930 fn update_buffer_diagnostics(
2931 &mut self,
2932 buffer: &ModelHandle<Buffer>,
2933 mut diagnostics: Vec<DiagnosticEntry<PointUtf16>>,
2934 version: Option<i32>,
2935 cx: &mut ModelContext<Self>,
2936 ) -> Result<()> {
2937 fn compare_diagnostics(a: &Diagnostic, b: &Diagnostic) -> Ordering {
2938 Ordering::Equal
2939 .then_with(|| b.is_primary.cmp(&a.is_primary))
2940 .then_with(|| a.is_disk_based.cmp(&b.is_disk_based))
2941 .then_with(|| a.severity.cmp(&b.severity))
2942 .then_with(|| a.message.cmp(&b.message))
2943 }
2944
2945 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, version, cx)?;
2946
2947 diagnostics.sort_unstable_by(|a, b| {
2948 Ordering::Equal
2949 .then_with(|| a.range.start.cmp(&b.range.start))
2950 .then_with(|| b.range.end.cmp(&a.range.end))
2951 .then_with(|| compare_diagnostics(&a.diagnostic, &b.diagnostic))
2952 });
2953
2954 let mut sanitized_diagnostics = Vec::new();
2955 let edits_since_save = Patch::new(
2956 snapshot
2957 .edits_since::<PointUtf16>(buffer.read(cx).saved_version())
2958 .collect(),
2959 );
2960 for entry in diagnostics {
2961 let start;
2962 let end;
2963 if entry.diagnostic.is_disk_based {
2964 // Some diagnostics are based on files on disk instead of buffers'
2965 // current contents. Adjust these diagnostics' ranges to reflect
2966 // any unsaved edits.
2967 start = edits_since_save.old_to_new(entry.range.start);
2968 end = edits_since_save.old_to_new(entry.range.end);
2969 } else {
2970 start = entry.range.start;
2971 end = entry.range.end;
2972 }
2973
2974 let mut range = snapshot.clip_point_utf16(start, Bias::Left)
2975 ..snapshot.clip_point_utf16(end, Bias::Right);
2976
2977 // Expand empty ranges by one character
2978 if range.start == range.end {
2979 range.end.column += 1;
2980 range.end = snapshot.clip_point_utf16(range.end, Bias::Right);
2981 if range.start == range.end && range.end.column > 0 {
2982 range.start.column -= 1;
2983 range.start = snapshot.clip_point_utf16(range.start, Bias::Left);
2984 }
2985 }
2986
2987 sanitized_diagnostics.push(DiagnosticEntry {
2988 range,
2989 diagnostic: entry.diagnostic,
2990 });
2991 }
2992 drop(edits_since_save);
2993
2994 let set = DiagnosticSet::new(sanitized_diagnostics, &snapshot);
2995 buffer.update(cx, |buffer, cx| buffer.update_diagnostics(set, cx));
2996 Ok(())
2997 }
2998
2999 pub fn reload_buffers(
3000 &self,
3001 buffers: HashSet<ModelHandle<Buffer>>,
3002 push_to_history: bool,
3003 cx: &mut ModelContext<Self>,
3004 ) -> Task<Result<ProjectTransaction>> {
3005 let mut local_buffers = Vec::new();
3006 let mut remote_buffers = None;
3007 for buffer_handle in buffers {
3008 let buffer = buffer_handle.read(cx);
3009 if buffer.is_dirty() {
3010 if let Some(file) = File::from_dyn(buffer.file()) {
3011 if file.is_local() {
3012 local_buffers.push(buffer_handle);
3013 } else {
3014 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
3015 }
3016 }
3017 }
3018 }
3019
3020 let remote_buffers = self.remote_id().zip(remote_buffers);
3021 let client = self.client.clone();
3022
3023 cx.spawn(|this, mut cx| async move {
3024 let mut project_transaction = ProjectTransaction::default();
3025
3026 if let Some((project_id, remote_buffers)) = remote_buffers {
3027 let response = client
3028 .request(proto::ReloadBuffers {
3029 project_id,
3030 buffer_ids: remote_buffers
3031 .iter()
3032 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3033 .collect(),
3034 })
3035 .await?
3036 .transaction
3037 .ok_or_else(|| anyhow!("missing transaction"))?;
3038 project_transaction = this
3039 .update(&mut cx, |this, cx| {
3040 this.deserialize_project_transaction(response, push_to_history, cx)
3041 })
3042 .await?;
3043 }
3044
3045 for buffer in local_buffers {
3046 let transaction = buffer
3047 .update(&mut cx, |buffer, cx| buffer.reload(cx))
3048 .await?;
3049 buffer.update(&mut cx, |buffer, cx| {
3050 if let Some(transaction) = transaction {
3051 if !push_to_history {
3052 buffer.forget_transaction(transaction.id);
3053 }
3054 project_transaction.0.insert(cx.handle(), transaction);
3055 }
3056 });
3057 }
3058
3059 Ok(project_transaction)
3060 })
3061 }
3062
3063 pub fn format(
3064 &self,
3065 buffers: HashSet<ModelHandle<Buffer>>,
3066 push_to_history: bool,
3067 trigger: FormatTrigger,
3068 cx: &mut ModelContext<Project>,
3069 ) -> Task<Result<ProjectTransaction>> {
3070 let mut local_buffers = Vec::new();
3071 let mut remote_buffers = None;
3072 for buffer_handle in buffers {
3073 let buffer = buffer_handle.read(cx);
3074 if let Some(file) = File::from_dyn(buffer.file()) {
3075 if let Some(buffer_abs_path) = file.as_local().map(|f| f.abs_path(cx)) {
3076 if let Some((_, server)) = self.language_server_for_buffer(buffer, cx) {
3077 local_buffers.push((buffer_handle, buffer_abs_path, server.clone()));
3078 }
3079 } else {
3080 remote_buffers.get_or_insert(Vec::new()).push(buffer_handle);
3081 }
3082 } else {
3083 return Task::ready(Ok(Default::default()));
3084 }
3085 }
3086
3087 let remote_buffers = self.remote_id().zip(remote_buffers);
3088 let client = self.client.clone();
3089
3090 cx.spawn(|this, mut cx| async move {
3091 let mut project_transaction = ProjectTransaction::default();
3092
3093 if let Some((project_id, remote_buffers)) = remote_buffers {
3094 let response = client
3095 .request(proto::FormatBuffers {
3096 project_id,
3097 trigger: trigger as i32,
3098 buffer_ids: remote_buffers
3099 .iter()
3100 .map(|buffer| buffer.read_with(&cx, |buffer, _| buffer.remote_id()))
3101 .collect(),
3102 })
3103 .await?
3104 .transaction
3105 .ok_or_else(|| anyhow!("missing transaction"))?;
3106 project_transaction = this
3107 .update(&mut cx, |this, cx| {
3108 this.deserialize_project_transaction(response, push_to_history, cx)
3109 })
3110 .await?;
3111 }
3112
3113 for (buffer, buffer_abs_path, language_server) in local_buffers {
3114 let (format_on_save, formatter, tab_size) = buffer.read_with(&cx, |buffer, cx| {
3115 let settings = cx.global::<Settings>();
3116 let language_name = buffer.language().map(|language| language.name());
3117 (
3118 settings.format_on_save(language_name.as_deref()),
3119 settings.formatter(language_name.as_deref()),
3120 settings.tab_size(language_name.as_deref()),
3121 )
3122 });
3123
3124 let transaction = match (formatter, format_on_save) {
3125 (_, FormatOnSave::Off) if trigger == FormatTrigger::Save => continue,
3126
3127 (Formatter::LanguageServer, FormatOnSave::On | FormatOnSave::Off)
3128 | (_, FormatOnSave::LanguageServer) => Self::format_via_lsp(
3129 &this,
3130 &buffer,
3131 &buffer_abs_path,
3132 &language_server,
3133 tab_size,
3134 &mut cx,
3135 )
3136 .await
3137 .context("failed to format via language server")?,
3138
3139 (
3140 Formatter::External { command, arguments },
3141 FormatOnSave::On | FormatOnSave::Off,
3142 )
3143 | (_, FormatOnSave::External { command, arguments }) => {
3144 Self::format_via_external_command(
3145 &buffer,
3146 &buffer_abs_path,
3147 &command,
3148 &arguments,
3149 &mut cx,
3150 )
3151 .await
3152 .context(format!(
3153 "failed to format via external command {:?}",
3154 command
3155 ))?
3156 }
3157 };
3158
3159 if let Some(transaction) = transaction {
3160 if !push_to_history {
3161 buffer.update(&mut cx, |buffer, _| {
3162 buffer.forget_transaction(transaction.id)
3163 });
3164 }
3165 project_transaction.0.insert(buffer, transaction);
3166 }
3167 }
3168
3169 Ok(project_transaction)
3170 })
3171 }
3172
3173 async fn format_via_lsp(
3174 this: &ModelHandle<Self>,
3175 buffer: &ModelHandle<Buffer>,
3176 abs_path: &Path,
3177 language_server: &Arc<LanguageServer>,
3178 tab_size: NonZeroU32,
3179 cx: &mut AsyncAppContext,
3180 ) -> Result<Option<Transaction>> {
3181 let text_document =
3182 lsp::TextDocumentIdentifier::new(lsp::Url::from_file_path(abs_path).unwrap());
3183 let capabilities = &language_server.capabilities();
3184 let lsp_edits = if capabilities
3185 .document_formatting_provider
3186 .as_ref()
3187 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
3188 {
3189 language_server
3190 .request::<lsp::request::Formatting>(lsp::DocumentFormattingParams {
3191 text_document,
3192 options: lsp::FormattingOptions {
3193 tab_size: tab_size.into(),
3194 insert_spaces: true,
3195 insert_final_newline: Some(true),
3196 ..Default::default()
3197 },
3198 work_done_progress_params: Default::default(),
3199 })
3200 .await?
3201 } else if capabilities
3202 .document_range_formatting_provider
3203 .as_ref()
3204 .map_or(false, |provider| *provider != lsp::OneOf::Left(false))
3205 {
3206 let buffer_start = lsp::Position::new(0, 0);
3207 let buffer_end =
3208 buffer.read_with(cx, |buffer, _| point_to_lsp(buffer.max_point_utf16()));
3209 language_server
3210 .request::<lsp::request::RangeFormatting>(lsp::DocumentRangeFormattingParams {
3211 text_document,
3212 range: lsp::Range::new(buffer_start, buffer_end),
3213 options: lsp::FormattingOptions {
3214 tab_size: tab_size.into(),
3215 insert_spaces: true,
3216 insert_final_newline: Some(true),
3217 ..Default::default()
3218 },
3219 work_done_progress_params: Default::default(),
3220 })
3221 .await?
3222 } else {
3223 None
3224 };
3225
3226 if let Some(lsp_edits) = lsp_edits {
3227 let edits = this
3228 .update(cx, |this, cx| {
3229 this.edits_from_lsp(buffer, lsp_edits, None, cx)
3230 })
3231 .await?;
3232 buffer.update(cx, |buffer, cx| {
3233 buffer.finalize_last_transaction();
3234 buffer.start_transaction();
3235 for (range, text) in edits {
3236 buffer.edit([(range, text)], None, cx);
3237 }
3238 if buffer.end_transaction(cx).is_some() {
3239 let transaction = buffer.finalize_last_transaction().unwrap().clone();
3240 Ok(Some(transaction))
3241 } else {
3242 Ok(None)
3243 }
3244 })
3245 } else {
3246 Ok(None)
3247 }
3248 }
3249
3250 async fn format_via_external_command(
3251 buffer: &ModelHandle<Buffer>,
3252 buffer_abs_path: &Path,
3253 command: &str,
3254 arguments: &[String],
3255 cx: &mut AsyncAppContext,
3256 ) -> Result<Option<Transaction>> {
3257 let working_dir_path = buffer.read_with(cx, |buffer, cx| {
3258 let file = File::from_dyn(buffer.file())?;
3259 let worktree = file.worktree.read(cx).as_local()?;
3260 let mut worktree_path = worktree.abs_path().to_path_buf();
3261 if worktree.root_entry()?.is_file() {
3262 worktree_path.pop();
3263 }
3264 Some(worktree_path)
3265 });
3266
3267 if let Some(working_dir_path) = working_dir_path {
3268 let mut child =
3269 smol::process::Command::new(command)
3270 .args(arguments.iter().map(|arg| {
3271 arg.replace("{buffer_path}", &buffer_abs_path.to_string_lossy())
3272 }))
3273 .current_dir(&working_dir_path)
3274 .stdin(smol::process::Stdio::piped())
3275 .stdout(smol::process::Stdio::piped())
3276 .stderr(smol::process::Stdio::piped())
3277 .spawn()?;
3278 let stdin = child
3279 .stdin
3280 .as_mut()
3281 .ok_or_else(|| anyhow!("failed to acquire stdin"))?;
3282 let text = buffer.read_with(cx, |buffer, _| buffer.as_rope().clone());
3283 for chunk in text.chunks() {
3284 stdin.write_all(chunk.as_bytes()).await?;
3285 }
3286 stdin.flush().await?;
3287
3288 let output = child.output().await?;
3289 if !output.status.success() {
3290 return Err(anyhow!(
3291 "command failed with exit code {:?}:\nstdout: {}\nstderr: {}",
3292 output.status.code(),
3293 String::from_utf8_lossy(&output.stdout),
3294 String::from_utf8_lossy(&output.stderr),
3295 ));
3296 }
3297
3298 let stdout = String::from_utf8(output.stdout)?;
3299 let diff = buffer
3300 .read_with(cx, |buffer, cx| buffer.diff(stdout, cx))
3301 .await;
3302 Ok(buffer.update(cx, |buffer, cx| buffer.apply_diff(diff, cx).cloned()))
3303 } else {
3304 Ok(None)
3305 }
3306 }
3307
3308 pub fn definition<T: ToPointUtf16>(
3309 &self,
3310 buffer: &ModelHandle<Buffer>,
3311 position: T,
3312 cx: &mut ModelContext<Self>,
3313 ) -> Task<Result<Vec<LocationLink>>> {
3314 let position = position.to_point_utf16(buffer.read(cx));
3315 self.request_lsp(buffer.clone(), GetDefinition { position }, cx)
3316 }
3317
3318 pub fn type_definition<T: ToPointUtf16>(
3319 &self,
3320 buffer: &ModelHandle<Buffer>,
3321 position: T,
3322 cx: &mut ModelContext<Self>,
3323 ) -> Task<Result<Vec<LocationLink>>> {
3324 let position = position.to_point_utf16(buffer.read(cx));
3325 self.request_lsp(buffer.clone(), GetTypeDefinition { position }, cx)
3326 }
3327
3328 pub fn references<T: ToPointUtf16>(
3329 &self,
3330 buffer: &ModelHandle<Buffer>,
3331 position: T,
3332 cx: &mut ModelContext<Self>,
3333 ) -> Task<Result<Vec<Location>>> {
3334 let position = position.to_point_utf16(buffer.read(cx));
3335 self.request_lsp(buffer.clone(), GetReferences { position }, cx)
3336 }
3337
3338 pub fn document_highlights<T: ToPointUtf16>(
3339 &self,
3340 buffer: &ModelHandle<Buffer>,
3341 position: T,
3342 cx: &mut ModelContext<Self>,
3343 ) -> Task<Result<Vec<DocumentHighlight>>> {
3344 let position = position.to_point_utf16(buffer.read(cx));
3345 self.request_lsp(buffer.clone(), GetDocumentHighlights { position }, cx)
3346 }
3347
3348 pub fn symbols(&self, query: &str, cx: &mut ModelContext<Self>) -> Task<Result<Vec<Symbol>>> {
3349 if self.is_local() {
3350 let mut requests = Vec::new();
3351 for ((worktree_id, _), server_id) in self.language_server_ids.iter() {
3352 let worktree_id = *worktree_id;
3353 if let Some(worktree) = self
3354 .worktree_for_id(worktree_id, cx)
3355 .and_then(|worktree| worktree.read(cx).as_local())
3356 {
3357 if let Some(LanguageServerState::Running {
3358 adapter,
3359 language,
3360 server,
3361 }) = self.language_servers.get(server_id)
3362 {
3363 let adapter = adapter.clone();
3364 let language = language.clone();
3365 let worktree_abs_path = worktree.abs_path().clone();
3366 requests.push(
3367 server
3368 .request::<lsp::request::WorkspaceSymbol>(
3369 lsp::WorkspaceSymbolParams {
3370 query: query.to_string(),
3371 ..Default::default()
3372 },
3373 )
3374 .log_err()
3375 .map(move |response| {
3376 (
3377 adapter,
3378 language,
3379 worktree_id,
3380 worktree_abs_path,
3381 response.unwrap_or_default(),
3382 )
3383 }),
3384 );
3385 }
3386 }
3387 }
3388
3389 cx.spawn_weak(|this, cx| async move {
3390 let responses = futures::future::join_all(requests).await;
3391 let this = if let Some(this) = this.upgrade(&cx) {
3392 this
3393 } else {
3394 return Ok(Default::default());
3395 };
3396 let symbols = this.read_with(&cx, |this, cx| {
3397 let mut symbols = Vec::new();
3398 for (
3399 adapter,
3400 adapter_language,
3401 source_worktree_id,
3402 worktree_abs_path,
3403 response,
3404 ) in responses
3405 {
3406 symbols.extend(response.into_iter().flatten().filter_map(|lsp_symbol| {
3407 let abs_path = lsp_symbol.location.uri.to_file_path().ok()?;
3408 let mut worktree_id = source_worktree_id;
3409 let path;
3410 if let Some((worktree, rel_path)) =
3411 this.find_local_worktree(&abs_path, cx)
3412 {
3413 worktree_id = worktree.read(cx).id();
3414 path = rel_path;
3415 } else {
3416 path = relativize_path(&worktree_abs_path, &abs_path);
3417 }
3418
3419 let project_path = ProjectPath {
3420 worktree_id,
3421 path: path.into(),
3422 };
3423 let signature = this.symbol_signature(&project_path);
3424 let language = this
3425 .languages
3426 .select_language(&project_path.path)
3427 .unwrap_or(adapter_language.clone());
3428 let language_server_name = adapter.name.clone();
3429 Some(async move {
3430 let label = language
3431 .label_for_symbol(&lsp_symbol.name, lsp_symbol.kind)
3432 .await;
3433
3434 Symbol {
3435 language_server_name,
3436 source_worktree_id,
3437 path: project_path,
3438 label: label.unwrap_or_else(|| {
3439 CodeLabel::plain(lsp_symbol.name.clone(), None)
3440 }),
3441 kind: lsp_symbol.kind,
3442 name: lsp_symbol.name,
3443 range: range_from_lsp(lsp_symbol.location.range),
3444 signature,
3445 }
3446 })
3447 }));
3448 }
3449 symbols
3450 });
3451 Ok(futures::future::join_all(symbols).await)
3452 })
3453 } else if let Some(project_id) = self.remote_id() {
3454 let request = self.client.request(proto::GetProjectSymbols {
3455 project_id,
3456 query: query.to_string(),
3457 });
3458 cx.spawn_weak(|this, cx| async move {
3459 let response = request.await?;
3460 let mut symbols = Vec::new();
3461 if let Some(this) = this.upgrade(&cx) {
3462 let new_symbols = this.read_with(&cx, |this, _| {
3463 response
3464 .symbols
3465 .into_iter()
3466 .map(|symbol| this.deserialize_symbol(symbol))
3467 .collect::<Vec<_>>()
3468 });
3469 symbols = futures::future::join_all(new_symbols)
3470 .await
3471 .into_iter()
3472 .filter_map(|symbol| symbol.log_err())
3473 .collect::<Vec<_>>();
3474 }
3475 Ok(symbols)
3476 })
3477 } else {
3478 Task::ready(Ok(Default::default()))
3479 }
3480 }
3481
3482 pub fn open_buffer_for_symbol(
3483 &mut self,
3484 symbol: &Symbol,
3485 cx: &mut ModelContext<Self>,
3486 ) -> Task<Result<ModelHandle<Buffer>>> {
3487 if self.is_local() {
3488 let language_server_id = if let Some(id) = self.language_server_ids.get(&(
3489 symbol.source_worktree_id,
3490 symbol.language_server_name.clone(),
3491 )) {
3492 *id
3493 } else {
3494 return Task::ready(Err(anyhow!(
3495 "language server for worktree and language not found"
3496 )));
3497 };
3498
3499 let worktree_abs_path = if let Some(worktree_abs_path) = self
3500 .worktree_for_id(symbol.path.worktree_id, cx)
3501 .and_then(|worktree| worktree.read(cx).as_local())
3502 .map(|local_worktree| local_worktree.abs_path())
3503 {
3504 worktree_abs_path
3505 } else {
3506 return Task::ready(Err(anyhow!("worktree not found for symbol")));
3507 };
3508 let symbol_abs_path = worktree_abs_path.join(&symbol.path.path);
3509 let symbol_uri = if let Ok(uri) = lsp::Url::from_file_path(symbol_abs_path) {
3510 uri
3511 } else {
3512 return Task::ready(Err(anyhow!("invalid symbol path")));
3513 };
3514
3515 self.open_local_buffer_via_lsp(
3516 symbol_uri,
3517 language_server_id,
3518 symbol.language_server_name.clone(),
3519 cx,
3520 )
3521 } else if let Some(project_id) = self.remote_id() {
3522 let request = self.client.request(proto::OpenBufferForSymbol {
3523 project_id,
3524 symbol: Some(serialize_symbol(symbol)),
3525 });
3526 cx.spawn(|this, mut cx| async move {
3527 let response = request.await?;
3528 this.update(&mut cx, |this, cx| {
3529 this.wait_for_buffer(response.buffer_id, cx)
3530 })
3531 .await
3532 })
3533 } else {
3534 Task::ready(Err(anyhow!("project does not have a remote id")))
3535 }
3536 }
3537
3538 pub fn hover<T: ToPointUtf16>(
3539 &self,
3540 buffer: &ModelHandle<Buffer>,
3541 position: T,
3542 cx: &mut ModelContext<Self>,
3543 ) -> Task<Result<Option<Hover>>> {
3544 let position = position.to_point_utf16(buffer.read(cx));
3545 self.request_lsp(buffer.clone(), GetHover { position }, cx)
3546 }
3547
3548 pub fn completions<T: ToPointUtf16>(
3549 &self,
3550 source_buffer_handle: &ModelHandle<Buffer>,
3551 position: T,
3552 cx: &mut ModelContext<Self>,
3553 ) -> Task<Result<Vec<Completion>>> {
3554 let source_buffer_handle = source_buffer_handle.clone();
3555 let source_buffer = source_buffer_handle.read(cx);
3556 let buffer_id = source_buffer.remote_id();
3557 let language = source_buffer.language().cloned();
3558 let worktree;
3559 let buffer_abs_path;
3560 if let Some(file) = File::from_dyn(source_buffer.file()) {
3561 worktree = file.worktree.clone();
3562 buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3563 } else {
3564 return Task::ready(Ok(Default::default()));
3565 };
3566
3567 let position = position.to_point_utf16(source_buffer);
3568 let anchor = source_buffer.anchor_after(position);
3569
3570 if worktree.read(cx).as_local().is_some() {
3571 let buffer_abs_path = buffer_abs_path.unwrap();
3572 let lang_server =
3573 if let Some((_, server)) = self.language_server_for_buffer(source_buffer, cx) {
3574 server.clone()
3575 } else {
3576 return Task::ready(Ok(Default::default()));
3577 };
3578
3579 cx.spawn(|_, cx| async move {
3580 let completions = lang_server
3581 .request::<lsp::request::Completion>(lsp::CompletionParams {
3582 text_document_position: lsp::TextDocumentPositionParams::new(
3583 lsp::TextDocumentIdentifier::new(
3584 lsp::Url::from_file_path(buffer_abs_path).unwrap(),
3585 ),
3586 point_to_lsp(position),
3587 ),
3588 context: Default::default(),
3589 work_done_progress_params: Default::default(),
3590 partial_result_params: Default::default(),
3591 })
3592 .await
3593 .context("lsp completion request failed")?;
3594
3595 let completions = if let Some(completions) = completions {
3596 match completions {
3597 lsp::CompletionResponse::Array(completions) => completions,
3598 lsp::CompletionResponse::List(list) => list.items,
3599 }
3600 } else {
3601 Default::default()
3602 };
3603
3604 let completions = source_buffer_handle.read_with(&cx, |this, _| {
3605 let snapshot = this.snapshot();
3606 let clipped_position = this.clip_point_utf16(position, Bias::Left);
3607 let mut range_for_token = None;
3608 completions.into_iter().filter_map(move |lsp_completion| {
3609 // For now, we can only handle additional edits if they are returned
3610 // when resolving the completion, not if they are present initially.
3611 if lsp_completion
3612 .additional_text_edits
3613 .as_ref()
3614 .map_or(false, |edits| !edits.is_empty())
3615 {
3616 return None;
3617 }
3618
3619 let (old_range, mut new_text) = match lsp_completion.text_edit.as_ref() {
3620 // If the language server provides a range to overwrite, then
3621 // check that the range is valid.
3622 Some(lsp::CompletionTextEdit::Edit(edit)) => {
3623 let range = range_from_lsp(edit.range);
3624 let start = snapshot.clip_point_utf16(range.start, Bias::Left);
3625 let end = snapshot.clip_point_utf16(range.end, Bias::Left);
3626 if start != range.start || end != range.end {
3627 log::info!("completion out of expected range");
3628 return None;
3629 }
3630 (
3631 snapshot.anchor_before(start)..snapshot.anchor_after(end),
3632 edit.new_text.clone(),
3633 )
3634 }
3635 // If the language server does not provide a range, then infer
3636 // the range based on the syntax tree.
3637 None => {
3638 if position != clipped_position {
3639 log::info!("completion out of expected range");
3640 return None;
3641 }
3642 let Range { start, end } = range_for_token
3643 .get_or_insert_with(|| {
3644 let offset = position.to_offset(&snapshot);
3645 let (range, kind) = snapshot.surrounding_word(offset);
3646 if kind == Some(CharKind::Word) {
3647 range
3648 } else {
3649 offset..offset
3650 }
3651 })
3652 .clone();
3653 let text = lsp_completion
3654 .insert_text
3655 .as_ref()
3656 .unwrap_or(&lsp_completion.label)
3657 .clone();
3658 (
3659 snapshot.anchor_before(start)..snapshot.anchor_after(end),
3660 text,
3661 )
3662 }
3663 Some(lsp::CompletionTextEdit::InsertAndReplace(_)) => {
3664 log::info!("unsupported insert/replace completion");
3665 return None;
3666 }
3667 };
3668
3669 LineEnding::normalize(&mut new_text);
3670 let language = language.clone();
3671 Some(async move {
3672 let label = if let Some(language) = language {
3673 language.label_for_completion(&lsp_completion).await
3674 } else {
3675 None
3676 };
3677 Completion {
3678 old_range,
3679 new_text,
3680 label: label.unwrap_or_else(|| {
3681 CodeLabel::plain(
3682 lsp_completion.label.clone(),
3683 lsp_completion.filter_text.as_deref(),
3684 )
3685 }),
3686 lsp_completion,
3687 }
3688 })
3689 })
3690 });
3691
3692 Ok(futures::future::join_all(completions).await)
3693 })
3694 } else if let Some(project_id) = self.remote_id() {
3695 let rpc = self.client.clone();
3696 let message = proto::GetCompletions {
3697 project_id,
3698 buffer_id,
3699 position: Some(language::proto::serialize_anchor(&anchor)),
3700 version: serialize_version(&source_buffer.version()),
3701 };
3702 cx.spawn_weak(|_, mut cx| async move {
3703 let response = rpc.request(message).await?;
3704
3705 source_buffer_handle
3706 .update(&mut cx, |buffer, _| {
3707 buffer.wait_for_version(deserialize_version(response.version))
3708 })
3709 .await;
3710
3711 let completions = response.completions.into_iter().map(|completion| {
3712 language::proto::deserialize_completion(completion, language.clone())
3713 });
3714 futures::future::try_join_all(completions).await
3715 })
3716 } else {
3717 Task::ready(Ok(Default::default()))
3718 }
3719 }
3720
3721 pub fn apply_additional_edits_for_completion(
3722 &self,
3723 buffer_handle: ModelHandle<Buffer>,
3724 completion: Completion,
3725 push_to_history: bool,
3726 cx: &mut ModelContext<Self>,
3727 ) -> Task<Result<Option<Transaction>>> {
3728 let buffer = buffer_handle.read(cx);
3729 let buffer_id = buffer.remote_id();
3730
3731 if self.is_local() {
3732 let lang_server = if let Some((_, server)) = self.language_server_for_buffer(buffer, cx)
3733 {
3734 server.clone()
3735 } else {
3736 return Task::ready(Ok(Default::default()));
3737 };
3738
3739 cx.spawn(|this, mut cx| async move {
3740 let resolved_completion = lang_server
3741 .request::<lsp::request::ResolveCompletionItem>(completion.lsp_completion)
3742 .await?;
3743 if let Some(edits) = resolved_completion.additional_text_edits {
3744 let edits = this
3745 .update(&mut cx, |this, cx| {
3746 this.edits_from_lsp(&buffer_handle, edits, None, cx)
3747 })
3748 .await?;
3749 buffer_handle.update(&mut cx, |buffer, cx| {
3750 buffer.finalize_last_transaction();
3751 buffer.start_transaction();
3752 for (range, text) in edits {
3753 buffer.edit([(range, text)], None, cx);
3754 }
3755 let transaction = if buffer.end_transaction(cx).is_some() {
3756 let transaction = buffer.finalize_last_transaction().unwrap().clone();
3757 if !push_to_history {
3758 buffer.forget_transaction(transaction.id);
3759 }
3760 Some(transaction)
3761 } else {
3762 None
3763 };
3764 Ok(transaction)
3765 })
3766 } else {
3767 Ok(None)
3768 }
3769 })
3770 } else if let Some(project_id) = self.remote_id() {
3771 let client = self.client.clone();
3772 cx.spawn(|_, mut cx| async move {
3773 let response = client
3774 .request(proto::ApplyCompletionAdditionalEdits {
3775 project_id,
3776 buffer_id,
3777 completion: Some(language::proto::serialize_completion(&completion)),
3778 })
3779 .await?;
3780
3781 if let Some(transaction) = response.transaction {
3782 let transaction = language::proto::deserialize_transaction(transaction)?;
3783 buffer_handle
3784 .update(&mut cx, |buffer, _| {
3785 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
3786 })
3787 .await;
3788 if push_to_history {
3789 buffer_handle.update(&mut cx, |buffer, _| {
3790 buffer.push_transaction(transaction.clone(), Instant::now());
3791 });
3792 }
3793 Ok(Some(transaction))
3794 } else {
3795 Ok(None)
3796 }
3797 })
3798 } else {
3799 Task::ready(Err(anyhow!("project does not have a remote id")))
3800 }
3801 }
3802
3803 pub fn code_actions<T: Clone + ToOffset>(
3804 &self,
3805 buffer_handle: &ModelHandle<Buffer>,
3806 range: Range<T>,
3807 cx: &mut ModelContext<Self>,
3808 ) -> Task<Result<Vec<CodeAction>>> {
3809 let buffer_handle = buffer_handle.clone();
3810 let buffer = buffer_handle.read(cx);
3811 let snapshot = buffer.snapshot();
3812 let relevant_diagnostics = snapshot
3813 .diagnostics_in_range::<usize, usize>(range.to_offset(&snapshot), false)
3814 .map(|entry| entry.to_lsp_diagnostic_stub())
3815 .collect();
3816 let buffer_id = buffer.remote_id();
3817 let worktree;
3818 let buffer_abs_path;
3819 if let Some(file) = File::from_dyn(buffer.file()) {
3820 worktree = file.worktree.clone();
3821 buffer_abs_path = file.as_local().map(|f| f.abs_path(cx));
3822 } else {
3823 return Task::ready(Ok(Default::default()));
3824 };
3825 let range = buffer.anchor_before(range.start)..buffer.anchor_before(range.end);
3826
3827 if worktree.read(cx).as_local().is_some() {
3828 let buffer_abs_path = buffer_abs_path.unwrap();
3829 let lang_server = if let Some((_, server)) = self.language_server_for_buffer(buffer, cx)
3830 {
3831 server.clone()
3832 } else {
3833 return Task::ready(Ok(Default::default()));
3834 };
3835
3836 let lsp_range = range_to_lsp(range.to_point_utf16(buffer));
3837 cx.foreground().spawn(async move {
3838 if lang_server.capabilities().code_action_provider.is_none() {
3839 return Ok(Default::default());
3840 }
3841
3842 Ok(lang_server
3843 .request::<lsp::request::CodeActionRequest>(lsp::CodeActionParams {
3844 text_document: lsp::TextDocumentIdentifier::new(
3845 lsp::Url::from_file_path(buffer_abs_path).unwrap(),
3846 ),
3847 range: lsp_range,
3848 work_done_progress_params: Default::default(),
3849 partial_result_params: Default::default(),
3850 context: lsp::CodeActionContext {
3851 diagnostics: relevant_diagnostics,
3852 only: Some(vec![
3853 lsp::CodeActionKind::QUICKFIX,
3854 lsp::CodeActionKind::REFACTOR,
3855 lsp::CodeActionKind::REFACTOR_EXTRACT,
3856 lsp::CodeActionKind::SOURCE,
3857 ]),
3858 },
3859 })
3860 .await?
3861 .unwrap_or_default()
3862 .into_iter()
3863 .filter_map(|entry| {
3864 if let lsp::CodeActionOrCommand::CodeAction(lsp_action) = entry {
3865 Some(CodeAction {
3866 range: range.clone(),
3867 lsp_action,
3868 })
3869 } else {
3870 None
3871 }
3872 })
3873 .collect())
3874 })
3875 } else if let Some(project_id) = self.remote_id() {
3876 let rpc = self.client.clone();
3877 let version = buffer.version();
3878 cx.spawn_weak(|_, mut cx| async move {
3879 let response = rpc
3880 .request(proto::GetCodeActions {
3881 project_id,
3882 buffer_id,
3883 start: Some(language::proto::serialize_anchor(&range.start)),
3884 end: Some(language::proto::serialize_anchor(&range.end)),
3885 version: serialize_version(&version),
3886 })
3887 .await?;
3888
3889 buffer_handle
3890 .update(&mut cx, |buffer, _| {
3891 buffer.wait_for_version(deserialize_version(response.version))
3892 })
3893 .await;
3894
3895 response
3896 .actions
3897 .into_iter()
3898 .map(language::proto::deserialize_code_action)
3899 .collect()
3900 })
3901 } else {
3902 Task::ready(Ok(Default::default()))
3903 }
3904 }
3905
3906 pub fn apply_code_action(
3907 &self,
3908 buffer_handle: ModelHandle<Buffer>,
3909 mut action: CodeAction,
3910 push_to_history: bool,
3911 cx: &mut ModelContext<Self>,
3912 ) -> Task<Result<ProjectTransaction>> {
3913 if self.is_local() {
3914 let buffer = buffer_handle.read(cx);
3915 let (lsp_adapter, lang_server) =
3916 if let Some((adapter, server)) = self.language_server_for_buffer(buffer, cx) {
3917 (adapter.clone(), server.clone())
3918 } else {
3919 return Task::ready(Ok(Default::default()));
3920 };
3921 let range = action.range.to_point_utf16(buffer);
3922
3923 cx.spawn(|this, mut cx| async move {
3924 if let Some(lsp_range) = action
3925 .lsp_action
3926 .data
3927 .as_mut()
3928 .and_then(|d| d.get_mut("codeActionParams"))
3929 .and_then(|d| d.get_mut("range"))
3930 {
3931 *lsp_range = serde_json::to_value(&range_to_lsp(range)).unwrap();
3932 action.lsp_action = lang_server
3933 .request::<lsp::request::CodeActionResolveRequest>(action.lsp_action)
3934 .await?;
3935 } else {
3936 let actions = this
3937 .update(&mut cx, |this, cx| {
3938 this.code_actions(&buffer_handle, action.range, cx)
3939 })
3940 .await?;
3941 action.lsp_action = actions
3942 .into_iter()
3943 .find(|a| a.lsp_action.title == action.lsp_action.title)
3944 .ok_or_else(|| anyhow!("code action is outdated"))?
3945 .lsp_action;
3946 }
3947
3948 if let Some(edit) = action.lsp_action.edit {
3949 if edit.changes.is_some() || edit.document_changes.is_some() {
3950 return Self::deserialize_workspace_edit(
3951 this,
3952 edit,
3953 push_to_history,
3954 lsp_adapter.clone(),
3955 lang_server.clone(),
3956 &mut cx,
3957 )
3958 .await;
3959 }
3960 }
3961
3962 if let Some(command) = action.lsp_action.command {
3963 this.update(&mut cx, |this, _| {
3964 this.last_workspace_edits_by_language_server
3965 .remove(&lang_server.server_id());
3966 });
3967 lang_server
3968 .request::<lsp::request::ExecuteCommand>(lsp::ExecuteCommandParams {
3969 command: command.command,
3970 arguments: command.arguments.unwrap_or_default(),
3971 ..Default::default()
3972 })
3973 .await?;
3974 return Ok(this.update(&mut cx, |this, _| {
3975 this.last_workspace_edits_by_language_server
3976 .remove(&lang_server.server_id())
3977 .unwrap_or_default()
3978 }));
3979 }
3980
3981 Ok(ProjectTransaction::default())
3982 })
3983 } else if let Some(project_id) = self.remote_id() {
3984 let client = self.client.clone();
3985 let request = proto::ApplyCodeAction {
3986 project_id,
3987 buffer_id: buffer_handle.read(cx).remote_id(),
3988 action: Some(language::proto::serialize_code_action(&action)),
3989 };
3990 cx.spawn(|this, mut cx| async move {
3991 let response = client
3992 .request(request)
3993 .await?
3994 .transaction
3995 .ok_or_else(|| anyhow!("missing transaction"))?;
3996 this.update(&mut cx, |this, cx| {
3997 this.deserialize_project_transaction(response, push_to_history, cx)
3998 })
3999 .await
4000 })
4001 } else {
4002 Task::ready(Err(anyhow!("project does not have a remote id")))
4003 }
4004 }
4005
4006 async fn deserialize_workspace_edit(
4007 this: ModelHandle<Self>,
4008 edit: lsp::WorkspaceEdit,
4009 push_to_history: bool,
4010 lsp_adapter: Arc<CachedLspAdapter>,
4011 language_server: Arc<LanguageServer>,
4012 cx: &mut AsyncAppContext,
4013 ) -> Result<ProjectTransaction> {
4014 let fs = this.read_with(cx, |this, _| this.fs.clone());
4015 let mut operations = Vec::new();
4016 if let Some(document_changes) = edit.document_changes {
4017 match document_changes {
4018 lsp::DocumentChanges::Edits(edits) => {
4019 operations.extend(edits.into_iter().map(lsp::DocumentChangeOperation::Edit))
4020 }
4021 lsp::DocumentChanges::Operations(ops) => operations = ops,
4022 }
4023 } else if let Some(changes) = edit.changes {
4024 operations.extend(changes.into_iter().map(|(uri, edits)| {
4025 lsp::DocumentChangeOperation::Edit(lsp::TextDocumentEdit {
4026 text_document: lsp::OptionalVersionedTextDocumentIdentifier {
4027 uri,
4028 version: None,
4029 },
4030 edits: edits.into_iter().map(lsp::OneOf::Left).collect(),
4031 })
4032 }));
4033 }
4034
4035 let mut project_transaction = ProjectTransaction::default();
4036 for operation in operations {
4037 match operation {
4038 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Create(op)) => {
4039 let abs_path = op
4040 .uri
4041 .to_file_path()
4042 .map_err(|_| anyhow!("can't convert URI to path"))?;
4043
4044 if let Some(parent_path) = abs_path.parent() {
4045 fs.create_dir(parent_path).await?;
4046 }
4047 if abs_path.ends_with("/") {
4048 fs.create_dir(&abs_path).await?;
4049 } else {
4050 fs.create_file(&abs_path, op.options.map(Into::into).unwrap_or_default())
4051 .await?;
4052 }
4053 }
4054 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Rename(op)) => {
4055 let source_abs_path = op
4056 .old_uri
4057 .to_file_path()
4058 .map_err(|_| anyhow!("can't convert URI to path"))?;
4059 let target_abs_path = op
4060 .new_uri
4061 .to_file_path()
4062 .map_err(|_| anyhow!("can't convert URI to path"))?;
4063 fs.rename(
4064 &source_abs_path,
4065 &target_abs_path,
4066 op.options.map(Into::into).unwrap_or_default(),
4067 )
4068 .await?;
4069 }
4070 lsp::DocumentChangeOperation::Op(lsp::ResourceOp::Delete(op)) => {
4071 let abs_path = op
4072 .uri
4073 .to_file_path()
4074 .map_err(|_| anyhow!("can't convert URI to path"))?;
4075 let options = op.options.map(Into::into).unwrap_or_default();
4076 if abs_path.ends_with("/") {
4077 fs.remove_dir(&abs_path, options).await?;
4078 } else {
4079 fs.remove_file(&abs_path, options).await?;
4080 }
4081 }
4082 lsp::DocumentChangeOperation::Edit(op) => {
4083 let buffer_to_edit = this
4084 .update(cx, |this, cx| {
4085 this.open_local_buffer_via_lsp(
4086 op.text_document.uri,
4087 language_server.server_id(),
4088 lsp_adapter.name.clone(),
4089 cx,
4090 )
4091 })
4092 .await?;
4093
4094 let edits = this
4095 .update(cx, |this, cx| {
4096 let edits = op.edits.into_iter().map(|edit| match edit {
4097 lsp::OneOf::Left(edit) => edit,
4098 lsp::OneOf::Right(edit) => edit.text_edit,
4099 });
4100 this.edits_from_lsp(
4101 &buffer_to_edit,
4102 edits,
4103 op.text_document.version,
4104 cx,
4105 )
4106 })
4107 .await?;
4108
4109 let transaction = buffer_to_edit.update(cx, |buffer, cx| {
4110 buffer.finalize_last_transaction();
4111 buffer.start_transaction();
4112 for (range, text) in edits {
4113 buffer.edit([(range, text)], None, cx);
4114 }
4115 let transaction = if buffer.end_transaction(cx).is_some() {
4116 let transaction = buffer.finalize_last_transaction().unwrap().clone();
4117 if !push_to_history {
4118 buffer.forget_transaction(transaction.id);
4119 }
4120 Some(transaction)
4121 } else {
4122 None
4123 };
4124
4125 transaction
4126 });
4127 if let Some(transaction) = transaction {
4128 project_transaction.0.insert(buffer_to_edit, transaction);
4129 }
4130 }
4131 }
4132 }
4133
4134 Ok(project_transaction)
4135 }
4136
4137 pub fn prepare_rename<T: ToPointUtf16>(
4138 &self,
4139 buffer: ModelHandle<Buffer>,
4140 position: T,
4141 cx: &mut ModelContext<Self>,
4142 ) -> Task<Result<Option<Range<Anchor>>>> {
4143 let position = position.to_point_utf16(buffer.read(cx));
4144 self.request_lsp(buffer, PrepareRename { position }, cx)
4145 }
4146
4147 pub fn perform_rename<T: ToPointUtf16>(
4148 &self,
4149 buffer: ModelHandle<Buffer>,
4150 position: T,
4151 new_name: String,
4152 push_to_history: bool,
4153 cx: &mut ModelContext<Self>,
4154 ) -> Task<Result<ProjectTransaction>> {
4155 let position = position.to_point_utf16(buffer.read(cx));
4156 self.request_lsp(
4157 buffer,
4158 PerformRename {
4159 position,
4160 new_name,
4161 push_to_history,
4162 },
4163 cx,
4164 )
4165 }
4166
4167 #[allow(clippy::type_complexity)]
4168 pub fn search(
4169 &self,
4170 query: SearchQuery,
4171 cx: &mut ModelContext<Self>,
4172 ) -> Task<Result<HashMap<ModelHandle<Buffer>, Vec<Range<Anchor>>>>> {
4173 if self.is_local() {
4174 let snapshots = self
4175 .visible_worktrees(cx)
4176 .filter_map(|tree| {
4177 let tree = tree.read(cx).as_local()?;
4178 Some(tree.snapshot())
4179 })
4180 .collect::<Vec<_>>();
4181
4182 let background = cx.background().clone();
4183 let path_count: usize = snapshots.iter().map(|s| s.visible_file_count()).sum();
4184 if path_count == 0 {
4185 return Task::ready(Ok(Default::default()));
4186 }
4187 let workers = background.num_cpus().min(path_count);
4188 let (matching_paths_tx, mut matching_paths_rx) = smol::channel::bounded(1024);
4189 cx.background()
4190 .spawn({
4191 let fs = self.fs.clone();
4192 let background = cx.background().clone();
4193 let query = query.clone();
4194 async move {
4195 let fs = &fs;
4196 let query = &query;
4197 let matching_paths_tx = &matching_paths_tx;
4198 let paths_per_worker = (path_count + workers - 1) / workers;
4199 let snapshots = &snapshots;
4200 background
4201 .scoped(|scope| {
4202 for worker_ix in 0..workers {
4203 let worker_start_ix = worker_ix * paths_per_worker;
4204 let worker_end_ix = worker_start_ix + paths_per_worker;
4205 scope.spawn(async move {
4206 let mut snapshot_start_ix = 0;
4207 let mut abs_path = PathBuf::new();
4208 for snapshot in snapshots {
4209 let snapshot_end_ix =
4210 snapshot_start_ix + snapshot.visible_file_count();
4211 if worker_end_ix <= snapshot_start_ix {
4212 break;
4213 } else if worker_start_ix > snapshot_end_ix {
4214 snapshot_start_ix = snapshot_end_ix;
4215 continue;
4216 } else {
4217 let start_in_snapshot = worker_start_ix
4218 .saturating_sub(snapshot_start_ix);
4219 let end_in_snapshot =
4220 cmp::min(worker_end_ix, snapshot_end_ix)
4221 - snapshot_start_ix;
4222
4223 for entry in snapshot
4224 .files(false, start_in_snapshot)
4225 .take(end_in_snapshot - start_in_snapshot)
4226 {
4227 if matching_paths_tx.is_closed() {
4228 break;
4229 }
4230
4231 abs_path.clear();
4232 abs_path.push(&snapshot.abs_path());
4233 abs_path.push(&entry.path);
4234 let matches = if let Some(file) =
4235 fs.open_sync(&abs_path).await.log_err()
4236 {
4237 query.detect(file).unwrap_or(false)
4238 } else {
4239 false
4240 };
4241
4242 if matches {
4243 let project_path =
4244 (snapshot.id(), entry.path.clone());
4245 if matching_paths_tx
4246 .send(project_path)
4247 .await
4248 .is_err()
4249 {
4250 break;
4251 }
4252 }
4253 }
4254
4255 snapshot_start_ix = snapshot_end_ix;
4256 }
4257 }
4258 });
4259 }
4260 })
4261 .await;
4262 }
4263 })
4264 .detach();
4265
4266 let (buffers_tx, buffers_rx) = smol::channel::bounded(1024);
4267 let open_buffers = self
4268 .opened_buffers
4269 .values()
4270 .filter_map(|b| b.upgrade(cx))
4271 .collect::<HashSet<_>>();
4272 cx.spawn(|this, cx| async move {
4273 for buffer in &open_buffers {
4274 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4275 buffers_tx.send((buffer.clone(), snapshot)).await?;
4276 }
4277
4278 let open_buffers = Rc::new(RefCell::new(open_buffers));
4279 while let Some(project_path) = matching_paths_rx.next().await {
4280 if buffers_tx.is_closed() {
4281 break;
4282 }
4283
4284 let this = this.clone();
4285 let open_buffers = open_buffers.clone();
4286 let buffers_tx = buffers_tx.clone();
4287 cx.spawn(|mut cx| async move {
4288 if let Some(buffer) = this
4289 .update(&mut cx, |this, cx| this.open_buffer(project_path, cx))
4290 .await
4291 .log_err()
4292 {
4293 if open_buffers.borrow_mut().insert(buffer.clone()) {
4294 let snapshot = buffer.read_with(&cx, |buffer, _| buffer.snapshot());
4295 buffers_tx.send((buffer, snapshot)).await?;
4296 }
4297 }
4298
4299 Ok::<_, anyhow::Error>(())
4300 })
4301 .detach();
4302 }
4303
4304 Ok::<_, anyhow::Error>(())
4305 })
4306 .detach_and_log_err(cx);
4307
4308 let background = cx.background().clone();
4309 cx.background().spawn(async move {
4310 let query = &query;
4311 let mut matched_buffers = Vec::new();
4312 for _ in 0..workers {
4313 matched_buffers.push(HashMap::default());
4314 }
4315 background
4316 .scoped(|scope| {
4317 for worker_matched_buffers in matched_buffers.iter_mut() {
4318 let mut buffers_rx = buffers_rx.clone();
4319 scope.spawn(async move {
4320 while let Some((buffer, snapshot)) = buffers_rx.next().await {
4321 let buffer_matches = query
4322 .search(snapshot.as_rope())
4323 .await
4324 .iter()
4325 .map(|range| {
4326 snapshot.anchor_before(range.start)
4327 ..snapshot.anchor_after(range.end)
4328 })
4329 .collect::<Vec<_>>();
4330 if !buffer_matches.is_empty() {
4331 worker_matched_buffers
4332 .insert(buffer.clone(), buffer_matches);
4333 }
4334 }
4335 });
4336 }
4337 })
4338 .await;
4339 Ok(matched_buffers.into_iter().flatten().collect())
4340 })
4341 } else if let Some(project_id) = self.remote_id() {
4342 let request = self.client.request(query.to_proto(project_id));
4343 cx.spawn(|this, mut cx| async move {
4344 let response = request.await?;
4345 let mut result = HashMap::default();
4346 for location in response.locations {
4347 let target_buffer = this
4348 .update(&mut cx, |this, cx| {
4349 this.wait_for_buffer(location.buffer_id, cx)
4350 })
4351 .await?;
4352 let start = location
4353 .start
4354 .and_then(deserialize_anchor)
4355 .ok_or_else(|| anyhow!("missing target start"))?;
4356 let end = location
4357 .end
4358 .and_then(deserialize_anchor)
4359 .ok_or_else(|| anyhow!("missing target end"))?;
4360 result
4361 .entry(target_buffer)
4362 .or_insert(Vec::new())
4363 .push(start..end)
4364 }
4365 Ok(result)
4366 })
4367 } else {
4368 Task::ready(Ok(Default::default()))
4369 }
4370 }
4371
4372 fn request_lsp<R: LspCommand>(
4373 &self,
4374 buffer_handle: ModelHandle<Buffer>,
4375 request: R,
4376 cx: &mut ModelContext<Self>,
4377 ) -> Task<Result<R::Response>>
4378 where
4379 <R::LspRequest as lsp::request::Request>::Result: Send,
4380 {
4381 let buffer = buffer_handle.read(cx);
4382 if self.is_local() {
4383 let file = File::from_dyn(buffer.file()).and_then(File::as_local);
4384 if let Some((file, language_server)) = file.zip(
4385 self.language_server_for_buffer(buffer, cx)
4386 .map(|(_, server)| server.clone()),
4387 ) {
4388 let lsp_params = request.to_lsp(&file.abs_path(cx), cx);
4389 return cx.spawn(|this, cx| async move {
4390 if !request.check_capabilities(language_server.capabilities()) {
4391 return Ok(Default::default());
4392 }
4393
4394 let response = language_server
4395 .request::<R::LspRequest>(lsp_params)
4396 .await
4397 .context("lsp request failed")?;
4398 request
4399 .response_from_lsp(response, this, buffer_handle, cx)
4400 .await
4401 });
4402 }
4403 } else if let Some(project_id) = self.remote_id() {
4404 let rpc = self.client.clone();
4405 let message = request.to_proto(project_id, buffer);
4406 return cx.spawn(|this, cx| async move {
4407 let response = rpc.request(message).await?;
4408 request
4409 .response_from_proto(response, this, buffer_handle, cx)
4410 .await
4411 });
4412 }
4413 Task::ready(Ok(Default::default()))
4414 }
4415
4416 pub fn find_or_create_local_worktree(
4417 &mut self,
4418 abs_path: impl AsRef<Path>,
4419 visible: bool,
4420 cx: &mut ModelContext<Self>,
4421 ) -> Task<Result<(ModelHandle<Worktree>, PathBuf)>> {
4422 let abs_path = abs_path.as_ref();
4423 if let Some((tree, relative_path)) = self.find_local_worktree(abs_path, cx) {
4424 Task::ready(Ok((tree, relative_path)))
4425 } else {
4426 let worktree = self.create_local_worktree(abs_path, visible, cx);
4427 cx.foreground()
4428 .spawn(async move { Ok((worktree.await?, PathBuf::new())) })
4429 }
4430 }
4431
4432 pub fn find_local_worktree(
4433 &self,
4434 abs_path: &Path,
4435 cx: &AppContext,
4436 ) -> Option<(ModelHandle<Worktree>, PathBuf)> {
4437 for tree in &self.worktrees {
4438 if let Some(tree) = tree.upgrade(cx) {
4439 if let Some(relative_path) = tree
4440 .read(cx)
4441 .as_local()
4442 .and_then(|t| abs_path.strip_prefix(t.abs_path()).ok())
4443 {
4444 return Some((tree.clone(), relative_path.into()));
4445 }
4446 }
4447 }
4448 None
4449 }
4450
4451 pub fn is_shared(&self) -> bool {
4452 match &self.client_state {
4453 ProjectClientState::Local { is_shared, .. } => *is_shared,
4454 ProjectClientState::Remote { .. } => false,
4455 }
4456 }
4457
4458 fn create_local_worktree(
4459 &mut self,
4460 abs_path: impl AsRef<Path>,
4461 visible: bool,
4462 cx: &mut ModelContext<Self>,
4463 ) -> Task<Result<ModelHandle<Worktree>>> {
4464 let fs = self.fs.clone();
4465 let client = self.client.clone();
4466 let next_entry_id = self.next_entry_id.clone();
4467 let path: Arc<Path> = abs_path.as_ref().into();
4468 let task = self
4469 .loading_local_worktrees
4470 .entry(path.clone())
4471 .or_insert_with(|| {
4472 cx.spawn(|project, mut cx| {
4473 async move {
4474 let worktree = Worktree::local(
4475 client.clone(),
4476 path.clone(),
4477 visible,
4478 fs,
4479 next_entry_id,
4480 &mut cx,
4481 )
4482 .await;
4483 project.update(&mut cx, |project, _| {
4484 project.loading_local_worktrees.remove(&path);
4485 });
4486 let worktree = worktree?;
4487
4488 let project_id = project.update(&mut cx, |project, cx| {
4489 project.add_worktree(&worktree, cx);
4490 project.shared_remote_id()
4491 });
4492
4493 if let Some(project_id) = project_id {
4494 worktree
4495 .update(&mut cx, |worktree, cx| {
4496 worktree.as_local_mut().unwrap().share(project_id, cx)
4497 })
4498 .await
4499 .log_err();
4500 }
4501
4502 Ok(worktree)
4503 }
4504 .map_err(Arc::new)
4505 })
4506 .shared()
4507 })
4508 .clone();
4509 cx.foreground().spawn(async move {
4510 match task.await {
4511 Ok(worktree) => Ok(worktree),
4512 Err(err) => Err(anyhow!("{}", err)),
4513 }
4514 })
4515 }
4516
4517 pub fn remove_worktree(&mut self, id_to_remove: WorktreeId, cx: &mut ModelContext<Self>) {
4518 self.worktrees.retain(|worktree| {
4519 if let Some(worktree) = worktree.upgrade(cx) {
4520 let id = worktree.read(cx).id();
4521 if id == id_to_remove {
4522 cx.emit(Event::WorktreeRemoved(id));
4523 false
4524 } else {
4525 true
4526 }
4527 } else {
4528 false
4529 }
4530 });
4531 self.metadata_changed(true, cx);
4532 cx.notify();
4533 }
4534
4535 fn add_worktree(&mut self, worktree: &ModelHandle<Worktree>, cx: &mut ModelContext<Self>) {
4536 cx.observe(worktree, |_, _, cx| cx.notify()).detach();
4537 if worktree.read(cx).is_local() {
4538 cx.subscribe(worktree, |this, worktree, event, cx| match event {
4539 worktree::Event::UpdatedEntries => this.update_local_worktree_buffers(worktree, cx),
4540 worktree::Event::UpdatedGitRepositories(updated_repos) => {
4541 this.update_local_worktree_buffers_git_repos(updated_repos, cx)
4542 }
4543 })
4544 .detach();
4545 }
4546
4547 let push_strong_handle = {
4548 let worktree = worktree.read(cx);
4549 self.is_shared() || worktree.is_visible() || worktree.is_remote()
4550 };
4551 if push_strong_handle {
4552 self.worktrees
4553 .push(WorktreeHandle::Strong(worktree.clone()));
4554 } else {
4555 self.worktrees
4556 .push(WorktreeHandle::Weak(worktree.downgrade()));
4557 }
4558
4559 self.metadata_changed(true, cx);
4560 cx.observe_release(worktree, |this, worktree, cx| {
4561 this.remove_worktree(worktree.id(), cx);
4562 cx.notify();
4563 })
4564 .detach();
4565
4566 cx.emit(Event::WorktreeAdded);
4567 cx.notify();
4568 }
4569
4570 fn update_local_worktree_buffers(
4571 &mut self,
4572 worktree_handle: ModelHandle<Worktree>,
4573 cx: &mut ModelContext<Self>,
4574 ) {
4575 let snapshot = worktree_handle.read(cx).snapshot();
4576 let mut buffers_to_delete = Vec::new();
4577 let mut renamed_buffers = Vec::new();
4578 for (buffer_id, buffer) in &self.opened_buffers {
4579 if let Some(buffer) = buffer.upgrade(cx) {
4580 buffer.update(cx, |buffer, cx| {
4581 if let Some(old_file) = File::from_dyn(buffer.file()) {
4582 if old_file.worktree != worktree_handle {
4583 return;
4584 }
4585
4586 let new_file = if let Some(entry) = old_file
4587 .entry_id
4588 .and_then(|entry_id| snapshot.entry_for_id(entry_id))
4589 {
4590 File {
4591 is_local: true,
4592 entry_id: Some(entry.id),
4593 mtime: entry.mtime,
4594 path: entry.path.clone(),
4595 worktree: worktree_handle.clone(),
4596 }
4597 } else if let Some(entry) =
4598 snapshot.entry_for_path(old_file.path().as_ref())
4599 {
4600 File {
4601 is_local: true,
4602 entry_id: Some(entry.id),
4603 mtime: entry.mtime,
4604 path: entry.path.clone(),
4605 worktree: worktree_handle.clone(),
4606 }
4607 } else {
4608 File {
4609 is_local: true,
4610 entry_id: None,
4611 path: old_file.path().clone(),
4612 mtime: old_file.mtime(),
4613 worktree: worktree_handle.clone(),
4614 }
4615 };
4616
4617 let old_path = old_file.abs_path(cx);
4618 if new_file.abs_path(cx) != old_path {
4619 renamed_buffers.push((cx.handle(), old_path));
4620 }
4621
4622 if let Some(project_id) = self.shared_remote_id() {
4623 self.client
4624 .send(proto::UpdateBufferFile {
4625 project_id,
4626 buffer_id: *buffer_id as u64,
4627 file: Some(new_file.to_proto()),
4628 })
4629 .log_err();
4630 }
4631 buffer.file_updated(Arc::new(new_file), cx).detach();
4632 }
4633 });
4634 } else {
4635 buffers_to_delete.push(*buffer_id);
4636 }
4637 }
4638
4639 for buffer_id in buffers_to_delete {
4640 self.opened_buffers.remove(&buffer_id);
4641 }
4642
4643 for (buffer, old_path) in renamed_buffers {
4644 self.unregister_buffer_from_language_server(&buffer, old_path, cx);
4645 self.assign_language_to_buffer(&buffer, cx);
4646 self.register_buffer_with_language_server(&buffer, cx);
4647 }
4648 }
4649
4650 fn update_local_worktree_buffers_git_repos(
4651 &mut self,
4652 updated_repos: &[GitRepository],
4653 cx: &mut ModelContext<Self>,
4654 ) {
4655 for (buffer_id, buffer) in &self.opened_buffers {
4656 if let Some(buffer) = buffer.upgrade(cx) {
4657 buffer.update(cx, |buffer, cx| {
4658 let updated = updated_repos.iter().any(|repo| {
4659 buffer
4660 .file()
4661 .and_then(|file| file.as_local())
4662 .map(|file| repo.manages(&file.abs_path(cx)))
4663 .unwrap_or(false)
4664 });
4665
4666 if updated {
4667 buffer.update_git(cx);
4668 }
4669 });
4670 }
4671 }
4672 }
4673
4674 pub fn set_active_path(&mut self, entry: Option<ProjectPath>, cx: &mut ModelContext<Self>) {
4675 let new_active_entry = entry.and_then(|project_path| {
4676 let worktree = self.worktree_for_id(project_path.worktree_id, cx)?;
4677 let entry = worktree.read(cx).entry_for_path(project_path.path)?;
4678 Some(entry.id)
4679 });
4680 if new_active_entry != self.active_entry {
4681 self.active_entry = new_active_entry;
4682 cx.emit(Event::ActiveEntryChanged(new_active_entry));
4683 }
4684 }
4685
4686 pub fn language_servers_running_disk_based_diagnostics(
4687 &self,
4688 ) -> impl Iterator<Item = usize> + '_ {
4689 self.language_server_statuses
4690 .iter()
4691 .filter_map(|(id, status)| {
4692 if status.has_pending_diagnostic_updates {
4693 Some(*id)
4694 } else {
4695 None
4696 }
4697 })
4698 }
4699
4700 pub fn diagnostic_summary(&self, cx: &AppContext) -> DiagnosticSummary {
4701 let mut summary = DiagnosticSummary::default();
4702 for (_, path_summary) in self.diagnostic_summaries(cx) {
4703 summary.error_count += path_summary.error_count;
4704 summary.warning_count += path_summary.warning_count;
4705 }
4706 summary
4707 }
4708
4709 pub fn diagnostic_summaries<'a>(
4710 &'a self,
4711 cx: &'a AppContext,
4712 ) -> impl Iterator<Item = (ProjectPath, DiagnosticSummary)> + 'a {
4713 self.visible_worktrees(cx).flat_map(move |worktree| {
4714 let worktree = worktree.read(cx);
4715 let worktree_id = worktree.id();
4716 worktree
4717 .diagnostic_summaries()
4718 .map(move |(path, summary)| (ProjectPath { worktree_id, path }, summary))
4719 })
4720 }
4721
4722 pub fn disk_based_diagnostics_started(
4723 &mut self,
4724 language_server_id: usize,
4725 cx: &mut ModelContext<Self>,
4726 ) {
4727 cx.emit(Event::DiskBasedDiagnosticsStarted { language_server_id });
4728 }
4729
4730 pub fn disk_based_diagnostics_finished(
4731 &mut self,
4732 language_server_id: usize,
4733 cx: &mut ModelContext<Self>,
4734 ) {
4735 cx.emit(Event::DiskBasedDiagnosticsFinished { language_server_id });
4736 }
4737
4738 pub fn active_entry(&self) -> Option<ProjectEntryId> {
4739 self.active_entry
4740 }
4741
4742 pub fn entry_for_path(&self, path: &ProjectPath, cx: &AppContext) -> Option<Entry> {
4743 self.worktree_for_id(path.worktree_id, cx)?
4744 .read(cx)
4745 .entry_for_path(&path.path)
4746 .cloned()
4747 }
4748
4749 pub fn path_for_entry(&self, entry_id: ProjectEntryId, cx: &AppContext) -> Option<ProjectPath> {
4750 let worktree = self.worktree_for_entry(entry_id, cx)?;
4751 let worktree = worktree.read(cx);
4752 let worktree_id = worktree.id();
4753 let path = worktree.entry_for_id(entry_id)?.path.clone();
4754 Some(ProjectPath { worktree_id, path })
4755 }
4756
4757 // RPC message handlers
4758
4759 async fn handle_request_join_project(
4760 this: ModelHandle<Self>,
4761 message: TypedEnvelope<proto::RequestJoinProject>,
4762 _: Arc<Client>,
4763 mut cx: AsyncAppContext,
4764 ) -> Result<()> {
4765 let user_id = message.payload.requester_id;
4766 if this.read_with(&cx, |project, _| {
4767 project.collaborators.values().any(|c| c.user.id == user_id)
4768 }) {
4769 this.update(&mut cx, |this, cx| {
4770 this.respond_to_join_request(user_id, true, cx)
4771 });
4772 } else {
4773 let user_store = this.read_with(&cx, |this, _| this.user_store.clone());
4774 let user = user_store
4775 .update(&mut cx, |store, cx| store.fetch_user(user_id, cx))
4776 .await?;
4777 this.update(&mut cx, |_, cx| cx.emit(Event::ContactRequestedJoin(user)));
4778 }
4779 Ok(())
4780 }
4781
4782 async fn handle_unregister_project(
4783 this: ModelHandle<Self>,
4784 _: TypedEnvelope<proto::UnregisterProject>,
4785 _: Arc<Client>,
4786 mut cx: AsyncAppContext,
4787 ) -> Result<()> {
4788 this.update(&mut cx, |this, cx| this.disconnected_from_host(cx));
4789 Ok(())
4790 }
4791
4792 async fn handle_project_unshared(
4793 this: ModelHandle<Self>,
4794 _: TypedEnvelope<proto::ProjectUnshared>,
4795 _: Arc<Client>,
4796 mut cx: AsyncAppContext,
4797 ) -> Result<()> {
4798 this.update(&mut cx, |this, cx| this.unshared(cx));
4799 Ok(())
4800 }
4801
4802 async fn handle_add_collaborator(
4803 this: ModelHandle<Self>,
4804 mut envelope: TypedEnvelope<proto::AddProjectCollaborator>,
4805 _: Arc<Client>,
4806 mut cx: AsyncAppContext,
4807 ) -> Result<()> {
4808 let user_store = this.read_with(&cx, |this, _| this.user_store.clone());
4809 let collaborator = envelope
4810 .payload
4811 .collaborator
4812 .take()
4813 .ok_or_else(|| anyhow!("empty collaborator"))?;
4814
4815 let collaborator = Collaborator::from_proto(collaborator, &user_store, &mut cx).await?;
4816 this.update(&mut cx, |this, cx| {
4817 this.collaborators
4818 .insert(collaborator.peer_id, collaborator);
4819 cx.notify();
4820 });
4821
4822 Ok(())
4823 }
4824
4825 async fn handle_remove_collaborator(
4826 this: ModelHandle<Self>,
4827 envelope: TypedEnvelope<proto::RemoveProjectCollaborator>,
4828 _: Arc<Client>,
4829 mut cx: AsyncAppContext,
4830 ) -> Result<()> {
4831 this.update(&mut cx, |this, cx| {
4832 let peer_id = PeerId(envelope.payload.peer_id);
4833 let replica_id = this
4834 .collaborators
4835 .remove(&peer_id)
4836 .ok_or_else(|| anyhow!("unknown peer {:?}", peer_id))?
4837 .replica_id;
4838 for buffer in this.opened_buffers.values() {
4839 if let Some(buffer) = buffer.upgrade(cx) {
4840 buffer.update(cx, |buffer, cx| buffer.remove_peer(replica_id, cx));
4841 }
4842 }
4843
4844 cx.emit(Event::CollaboratorLeft(peer_id));
4845 cx.notify();
4846 Ok(())
4847 })
4848 }
4849
4850 async fn handle_join_project_request_cancelled(
4851 this: ModelHandle<Self>,
4852 envelope: TypedEnvelope<proto::JoinProjectRequestCancelled>,
4853 _: Arc<Client>,
4854 mut cx: AsyncAppContext,
4855 ) -> Result<()> {
4856 let user = this
4857 .update(&mut cx, |this, cx| {
4858 this.user_store.update(cx, |user_store, cx| {
4859 user_store.fetch_user(envelope.payload.requester_id, cx)
4860 })
4861 })
4862 .await?;
4863
4864 this.update(&mut cx, |_, cx| {
4865 cx.emit(Event::ContactCancelledJoinRequest(user));
4866 });
4867
4868 Ok(())
4869 }
4870
4871 async fn handle_update_project(
4872 this: ModelHandle<Self>,
4873 envelope: TypedEnvelope<proto::UpdateProject>,
4874 client: Arc<Client>,
4875 mut cx: AsyncAppContext,
4876 ) -> Result<()> {
4877 this.update(&mut cx, |this, cx| {
4878 let replica_id = this.replica_id();
4879 let remote_id = this.remote_id().ok_or_else(|| anyhow!("invalid project"))?;
4880
4881 let mut old_worktrees_by_id = this
4882 .worktrees
4883 .drain(..)
4884 .filter_map(|worktree| {
4885 let worktree = worktree.upgrade(cx)?;
4886 Some((worktree.read(cx).id(), worktree))
4887 })
4888 .collect::<HashMap<_, _>>();
4889
4890 for worktree in envelope.payload.worktrees {
4891 if let Some(old_worktree) =
4892 old_worktrees_by_id.remove(&WorktreeId::from_proto(worktree.id))
4893 {
4894 this.worktrees.push(WorktreeHandle::Strong(old_worktree));
4895 } else {
4896 let worktree =
4897 Worktree::remote(remote_id, replica_id, worktree, client.clone(), cx);
4898 this.add_worktree(&worktree, cx);
4899 }
4900 }
4901
4902 this.metadata_changed(true, cx);
4903 for (id, _) in old_worktrees_by_id {
4904 cx.emit(Event::WorktreeRemoved(id));
4905 }
4906
4907 Ok(())
4908 })
4909 }
4910
4911 async fn handle_update_worktree(
4912 this: ModelHandle<Self>,
4913 envelope: TypedEnvelope<proto::UpdateWorktree>,
4914 _: Arc<Client>,
4915 mut cx: AsyncAppContext,
4916 ) -> Result<()> {
4917 this.update(&mut cx, |this, cx| {
4918 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4919 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
4920 worktree.update(cx, |worktree, _| {
4921 let worktree = worktree.as_remote_mut().unwrap();
4922 worktree.update_from_remote(envelope.payload);
4923 });
4924 }
4925 Ok(())
4926 })
4927 }
4928
4929 async fn handle_create_project_entry(
4930 this: ModelHandle<Self>,
4931 envelope: TypedEnvelope<proto::CreateProjectEntry>,
4932 _: Arc<Client>,
4933 mut cx: AsyncAppContext,
4934 ) -> Result<proto::ProjectEntryResponse> {
4935 let worktree = this.update(&mut cx, |this, cx| {
4936 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
4937 this.worktree_for_id(worktree_id, cx)
4938 .ok_or_else(|| anyhow!("worktree not found"))
4939 })?;
4940 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4941 let entry = worktree
4942 .update(&mut cx, |worktree, cx| {
4943 let worktree = worktree.as_local_mut().unwrap();
4944 let path = PathBuf::from(OsString::from_vec(envelope.payload.path));
4945 worktree.create_entry(path, envelope.payload.is_directory, cx)
4946 })
4947 .await?;
4948 Ok(proto::ProjectEntryResponse {
4949 entry: Some((&entry).into()),
4950 worktree_scan_id: worktree_scan_id as u64,
4951 })
4952 }
4953
4954 async fn handle_rename_project_entry(
4955 this: ModelHandle<Self>,
4956 envelope: TypedEnvelope<proto::RenameProjectEntry>,
4957 _: Arc<Client>,
4958 mut cx: AsyncAppContext,
4959 ) -> Result<proto::ProjectEntryResponse> {
4960 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
4961 let worktree = this.read_with(&cx, |this, cx| {
4962 this.worktree_for_entry(entry_id, cx)
4963 .ok_or_else(|| anyhow!("worktree not found"))
4964 })?;
4965 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4966 let entry = worktree
4967 .update(&mut cx, |worktree, cx| {
4968 let new_path = PathBuf::from(OsString::from_vec(envelope.payload.new_path));
4969 worktree
4970 .as_local_mut()
4971 .unwrap()
4972 .rename_entry(entry_id, new_path, cx)
4973 .ok_or_else(|| anyhow!("invalid entry"))
4974 })?
4975 .await?;
4976 Ok(proto::ProjectEntryResponse {
4977 entry: Some((&entry).into()),
4978 worktree_scan_id: worktree_scan_id as u64,
4979 })
4980 }
4981
4982 async fn handle_copy_project_entry(
4983 this: ModelHandle<Self>,
4984 envelope: TypedEnvelope<proto::CopyProjectEntry>,
4985 _: Arc<Client>,
4986 mut cx: AsyncAppContext,
4987 ) -> Result<proto::ProjectEntryResponse> {
4988 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
4989 let worktree = this.read_with(&cx, |this, cx| {
4990 this.worktree_for_entry(entry_id, cx)
4991 .ok_or_else(|| anyhow!("worktree not found"))
4992 })?;
4993 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
4994 let entry = worktree
4995 .update(&mut cx, |worktree, cx| {
4996 let new_path = PathBuf::from(OsString::from_vec(envelope.payload.new_path));
4997 worktree
4998 .as_local_mut()
4999 .unwrap()
5000 .copy_entry(entry_id, new_path, cx)
5001 .ok_or_else(|| anyhow!("invalid entry"))
5002 })?
5003 .await?;
5004 Ok(proto::ProjectEntryResponse {
5005 entry: Some((&entry).into()),
5006 worktree_scan_id: worktree_scan_id as u64,
5007 })
5008 }
5009
5010 async fn handle_delete_project_entry(
5011 this: ModelHandle<Self>,
5012 envelope: TypedEnvelope<proto::DeleteProjectEntry>,
5013 _: Arc<Client>,
5014 mut cx: AsyncAppContext,
5015 ) -> Result<proto::ProjectEntryResponse> {
5016 let entry_id = ProjectEntryId::from_proto(envelope.payload.entry_id);
5017 let worktree = this.read_with(&cx, |this, cx| {
5018 this.worktree_for_entry(entry_id, cx)
5019 .ok_or_else(|| anyhow!("worktree not found"))
5020 })?;
5021 let worktree_scan_id = worktree.read_with(&cx, |worktree, _| worktree.scan_id());
5022 worktree
5023 .update(&mut cx, |worktree, cx| {
5024 worktree
5025 .as_local_mut()
5026 .unwrap()
5027 .delete_entry(entry_id, cx)
5028 .ok_or_else(|| anyhow!("invalid entry"))
5029 })?
5030 .await?;
5031 Ok(proto::ProjectEntryResponse {
5032 entry: None,
5033 worktree_scan_id: worktree_scan_id as u64,
5034 })
5035 }
5036
5037 async fn handle_update_diagnostic_summary(
5038 this: ModelHandle<Self>,
5039 envelope: TypedEnvelope<proto::UpdateDiagnosticSummary>,
5040 _: Arc<Client>,
5041 mut cx: AsyncAppContext,
5042 ) -> Result<()> {
5043 this.update(&mut cx, |this, cx| {
5044 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5045 if let Some(worktree) = this.worktree_for_id(worktree_id, cx) {
5046 if let Some(summary) = envelope.payload.summary {
5047 let project_path = ProjectPath {
5048 worktree_id,
5049 path: Path::new(&summary.path).into(),
5050 };
5051 worktree.update(cx, |worktree, _| {
5052 worktree
5053 .as_remote_mut()
5054 .unwrap()
5055 .update_diagnostic_summary(project_path.path.clone(), &summary);
5056 });
5057 cx.emit(Event::DiagnosticsUpdated {
5058 language_server_id: summary.language_server_id as usize,
5059 path: project_path,
5060 });
5061 }
5062 }
5063 Ok(())
5064 })
5065 }
5066
5067 async fn handle_start_language_server(
5068 this: ModelHandle<Self>,
5069 envelope: TypedEnvelope<proto::StartLanguageServer>,
5070 _: Arc<Client>,
5071 mut cx: AsyncAppContext,
5072 ) -> Result<()> {
5073 let server = envelope
5074 .payload
5075 .server
5076 .ok_or_else(|| anyhow!("invalid server"))?;
5077 this.update(&mut cx, |this, cx| {
5078 this.language_server_statuses.insert(
5079 server.id as usize,
5080 LanguageServerStatus {
5081 name: server.name,
5082 pending_work: Default::default(),
5083 has_pending_diagnostic_updates: false,
5084 progress_tokens: Default::default(),
5085 },
5086 );
5087 cx.notify();
5088 });
5089 Ok(())
5090 }
5091
5092 async fn handle_update_language_server(
5093 this: ModelHandle<Self>,
5094 envelope: TypedEnvelope<proto::UpdateLanguageServer>,
5095 _: Arc<Client>,
5096 mut cx: AsyncAppContext,
5097 ) -> Result<()> {
5098 let language_server_id = envelope.payload.language_server_id as usize;
5099 match envelope
5100 .payload
5101 .variant
5102 .ok_or_else(|| anyhow!("invalid variant"))?
5103 {
5104 proto::update_language_server::Variant::WorkStart(payload) => {
5105 this.update(&mut cx, |this, cx| {
5106 this.on_lsp_work_start(
5107 language_server_id,
5108 payload.token,
5109 LanguageServerProgress {
5110 message: payload.message,
5111 percentage: payload.percentage.map(|p| p as usize),
5112 last_update_at: Instant::now(),
5113 },
5114 cx,
5115 );
5116 })
5117 }
5118 proto::update_language_server::Variant::WorkProgress(payload) => {
5119 this.update(&mut cx, |this, cx| {
5120 this.on_lsp_work_progress(
5121 language_server_id,
5122 payload.token,
5123 LanguageServerProgress {
5124 message: payload.message,
5125 percentage: payload.percentage.map(|p| p as usize),
5126 last_update_at: Instant::now(),
5127 },
5128 cx,
5129 );
5130 })
5131 }
5132 proto::update_language_server::Variant::WorkEnd(payload) => {
5133 this.update(&mut cx, |this, cx| {
5134 this.on_lsp_work_end(language_server_id, payload.token, cx);
5135 })
5136 }
5137 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdating(_) => {
5138 this.update(&mut cx, |this, cx| {
5139 this.disk_based_diagnostics_started(language_server_id, cx);
5140 })
5141 }
5142 proto::update_language_server::Variant::DiskBasedDiagnosticsUpdated(_) => {
5143 this.update(&mut cx, |this, cx| {
5144 this.disk_based_diagnostics_finished(language_server_id, cx)
5145 });
5146 }
5147 }
5148
5149 Ok(())
5150 }
5151
5152 async fn handle_update_buffer(
5153 this: ModelHandle<Self>,
5154 envelope: TypedEnvelope<proto::UpdateBuffer>,
5155 _: Arc<Client>,
5156 mut cx: AsyncAppContext,
5157 ) -> Result<()> {
5158 this.update(&mut cx, |this, cx| {
5159 let payload = envelope.payload.clone();
5160 let buffer_id = payload.buffer_id;
5161 let ops = payload
5162 .operations
5163 .into_iter()
5164 .map(language::proto::deserialize_operation)
5165 .collect::<Result<Vec<_>, _>>()?;
5166 let is_remote = this.is_remote();
5167 match this.opened_buffers.entry(buffer_id) {
5168 hash_map::Entry::Occupied(mut e) => match e.get_mut() {
5169 OpenBuffer::Strong(buffer) => {
5170 buffer.update(cx, |buffer, cx| buffer.apply_ops(ops, cx))?;
5171 }
5172 OpenBuffer::Operations(operations) => operations.extend_from_slice(&ops),
5173 OpenBuffer::Weak(_) => {}
5174 },
5175 hash_map::Entry::Vacant(e) => {
5176 assert!(
5177 is_remote,
5178 "received buffer update from {:?}",
5179 envelope.original_sender_id
5180 );
5181 e.insert(OpenBuffer::Operations(ops));
5182 }
5183 }
5184 Ok(())
5185 })
5186 }
5187
5188 async fn handle_create_buffer_for_peer(
5189 this: ModelHandle<Self>,
5190 envelope: TypedEnvelope<proto::CreateBufferForPeer>,
5191 _: Arc<Client>,
5192 mut cx: AsyncAppContext,
5193 ) -> Result<()> {
5194 this.update(&mut cx, |this, cx| {
5195 match envelope
5196 .payload
5197 .variant
5198 .ok_or_else(|| anyhow!("missing variant"))?
5199 {
5200 proto::create_buffer_for_peer::Variant::State(mut state) => {
5201 let mut buffer_file = None;
5202 if let Some(file) = state.file.take() {
5203 let worktree_id = WorktreeId::from_proto(file.worktree_id);
5204 let worktree = this.worktree_for_id(worktree_id, cx).ok_or_else(|| {
5205 anyhow!("no worktree found for id {}", file.worktree_id)
5206 })?;
5207 buffer_file = Some(Arc::new(File::from_proto(file, worktree.clone(), cx)?)
5208 as Arc<dyn language::File>);
5209 }
5210
5211 let buffer_id = state.id;
5212 let buffer = cx.add_model(|_| {
5213 Buffer::from_proto(this.replica_id(), state, buffer_file).unwrap()
5214 });
5215 this.incomplete_buffers.insert(buffer_id, buffer);
5216 }
5217 proto::create_buffer_for_peer::Variant::Chunk(chunk) => {
5218 let buffer = this
5219 .incomplete_buffers
5220 .get(&chunk.buffer_id)
5221 .ok_or_else(|| {
5222 anyhow!(
5223 "received chunk for buffer {} without initial state",
5224 chunk.buffer_id
5225 )
5226 })?
5227 .clone();
5228 let operations = chunk
5229 .operations
5230 .into_iter()
5231 .map(language::proto::deserialize_operation)
5232 .collect::<Result<Vec<_>>>()?;
5233 buffer.update(cx, |buffer, cx| buffer.apply_ops(operations, cx))?;
5234
5235 if chunk.is_last {
5236 this.incomplete_buffers.remove(&chunk.buffer_id);
5237 this.register_buffer(&buffer, cx)?;
5238 }
5239 }
5240 }
5241
5242 Ok(())
5243 })
5244 }
5245
5246 async fn handle_update_buffer_file(
5247 this: ModelHandle<Self>,
5248 envelope: TypedEnvelope<proto::UpdateBufferFile>,
5249 _: Arc<Client>,
5250 mut cx: AsyncAppContext,
5251 ) -> Result<()> {
5252 this.update(&mut cx, |this, cx| {
5253 let payload = envelope.payload.clone();
5254 let buffer_id = payload.buffer_id;
5255 let file = payload.file.ok_or_else(|| anyhow!("invalid file"))?;
5256 let worktree = this
5257 .worktree_for_id(WorktreeId::from_proto(file.worktree_id), cx)
5258 .ok_or_else(|| anyhow!("no such worktree"))?;
5259 let file = File::from_proto(file, worktree, cx)?;
5260 let buffer = this
5261 .opened_buffers
5262 .get_mut(&buffer_id)
5263 .and_then(|b| b.upgrade(cx))
5264 .ok_or_else(|| anyhow!("no such buffer"))?;
5265 buffer.update(cx, |buffer, cx| {
5266 buffer.file_updated(Arc::new(file), cx).detach();
5267 });
5268 Ok(())
5269 })
5270 }
5271
5272 async fn handle_save_buffer(
5273 this: ModelHandle<Self>,
5274 envelope: TypedEnvelope<proto::SaveBuffer>,
5275 _: Arc<Client>,
5276 mut cx: AsyncAppContext,
5277 ) -> Result<proto::BufferSaved> {
5278 let buffer_id = envelope.payload.buffer_id;
5279 let requested_version = deserialize_version(envelope.payload.version);
5280
5281 let (project_id, buffer) = this.update(&mut cx, |this, cx| {
5282 let project_id = this.remote_id().ok_or_else(|| anyhow!("not connected"))?;
5283 let buffer = this
5284 .opened_buffers
5285 .get(&buffer_id)
5286 .and_then(|buffer| buffer.upgrade(cx))
5287 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?;
5288 Ok::<_, anyhow::Error>((project_id, buffer))
5289 })?;
5290 buffer
5291 .update(&mut cx, |buffer, _| {
5292 buffer.wait_for_version(requested_version)
5293 })
5294 .await;
5295
5296 let (saved_version, fingerprint, mtime) =
5297 buffer.update(&mut cx, |buffer, cx| buffer.save(cx)).await?;
5298 Ok(proto::BufferSaved {
5299 project_id,
5300 buffer_id,
5301 version: serialize_version(&saved_version),
5302 mtime: Some(mtime.into()),
5303 fingerprint,
5304 })
5305 }
5306
5307 async fn handle_reload_buffers(
5308 this: ModelHandle<Self>,
5309 envelope: TypedEnvelope<proto::ReloadBuffers>,
5310 _: Arc<Client>,
5311 mut cx: AsyncAppContext,
5312 ) -> Result<proto::ReloadBuffersResponse> {
5313 let sender_id = envelope.original_sender_id()?;
5314 let reload = this.update(&mut cx, |this, cx| {
5315 let mut buffers = HashSet::default();
5316 for buffer_id in &envelope.payload.buffer_ids {
5317 buffers.insert(
5318 this.opened_buffers
5319 .get(buffer_id)
5320 .and_then(|buffer| buffer.upgrade(cx))
5321 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5322 );
5323 }
5324 Ok::<_, anyhow::Error>(this.reload_buffers(buffers, false, cx))
5325 })?;
5326
5327 let project_transaction = reload.await?;
5328 let project_transaction = this.update(&mut cx, |this, cx| {
5329 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5330 });
5331 Ok(proto::ReloadBuffersResponse {
5332 transaction: Some(project_transaction),
5333 })
5334 }
5335
5336 async fn handle_format_buffers(
5337 this: ModelHandle<Self>,
5338 envelope: TypedEnvelope<proto::FormatBuffers>,
5339 _: Arc<Client>,
5340 mut cx: AsyncAppContext,
5341 ) -> Result<proto::FormatBuffersResponse> {
5342 let sender_id = envelope.original_sender_id()?;
5343 let format = this.update(&mut cx, |this, cx| {
5344 let mut buffers = HashSet::default();
5345 for buffer_id in &envelope.payload.buffer_ids {
5346 buffers.insert(
5347 this.opened_buffers
5348 .get(buffer_id)
5349 .and_then(|buffer| buffer.upgrade(cx))
5350 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))?,
5351 );
5352 }
5353 let trigger = FormatTrigger::from_proto(envelope.payload.trigger);
5354 Ok::<_, anyhow::Error>(this.format(buffers, false, trigger, cx))
5355 })?;
5356
5357 let project_transaction = format.await?;
5358 let project_transaction = this.update(&mut cx, |this, cx| {
5359 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5360 });
5361 Ok(proto::FormatBuffersResponse {
5362 transaction: Some(project_transaction),
5363 })
5364 }
5365
5366 async fn handle_get_completions(
5367 this: ModelHandle<Self>,
5368 envelope: TypedEnvelope<proto::GetCompletions>,
5369 _: Arc<Client>,
5370 mut cx: AsyncAppContext,
5371 ) -> Result<proto::GetCompletionsResponse> {
5372 let position = envelope
5373 .payload
5374 .position
5375 .and_then(language::proto::deserialize_anchor)
5376 .ok_or_else(|| anyhow!("invalid position"))?;
5377 let version = deserialize_version(envelope.payload.version);
5378 let buffer = this.read_with(&cx, |this, cx| {
5379 this.opened_buffers
5380 .get(&envelope.payload.buffer_id)
5381 .and_then(|buffer| buffer.upgrade(cx))
5382 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))
5383 })?;
5384 buffer
5385 .update(&mut cx, |buffer, _| buffer.wait_for_version(version))
5386 .await;
5387 let version = buffer.read_with(&cx, |buffer, _| buffer.version());
5388 let completions = this
5389 .update(&mut cx, |this, cx| this.completions(&buffer, position, cx))
5390 .await?;
5391
5392 Ok(proto::GetCompletionsResponse {
5393 completions: completions
5394 .iter()
5395 .map(language::proto::serialize_completion)
5396 .collect(),
5397 version: serialize_version(&version),
5398 })
5399 }
5400
5401 async fn handle_apply_additional_edits_for_completion(
5402 this: ModelHandle<Self>,
5403 envelope: TypedEnvelope<proto::ApplyCompletionAdditionalEdits>,
5404 _: Arc<Client>,
5405 mut cx: AsyncAppContext,
5406 ) -> Result<proto::ApplyCompletionAdditionalEditsResponse> {
5407 let (buffer, completion) = this.update(&mut cx, |this, cx| {
5408 let buffer = this
5409 .opened_buffers
5410 .get(&envelope.payload.buffer_id)
5411 .and_then(|buffer| buffer.upgrade(cx))
5412 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5413 let language = buffer.read(cx).language();
5414 let completion = language::proto::deserialize_completion(
5415 envelope
5416 .payload
5417 .completion
5418 .ok_or_else(|| anyhow!("invalid completion"))?,
5419 language.cloned(),
5420 );
5421 Ok::<_, anyhow::Error>((buffer, completion))
5422 })?;
5423
5424 let completion = completion.await?;
5425
5426 let apply_additional_edits = this.update(&mut cx, |this, cx| {
5427 this.apply_additional_edits_for_completion(buffer, completion, false, cx)
5428 });
5429
5430 Ok(proto::ApplyCompletionAdditionalEditsResponse {
5431 transaction: apply_additional_edits
5432 .await?
5433 .as_ref()
5434 .map(language::proto::serialize_transaction),
5435 })
5436 }
5437
5438 async fn handle_get_code_actions(
5439 this: ModelHandle<Self>,
5440 envelope: TypedEnvelope<proto::GetCodeActions>,
5441 _: Arc<Client>,
5442 mut cx: AsyncAppContext,
5443 ) -> Result<proto::GetCodeActionsResponse> {
5444 let start = envelope
5445 .payload
5446 .start
5447 .and_then(language::proto::deserialize_anchor)
5448 .ok_or_else(|| anyhow!("invalid start"))?;
5449 let end = envelope
5450 .payload
5451 .end
5452 .and_then(language::proto::deserialize_anchor)
5453 .ok_or_else(|| anyhow!("invalid end"))?;
5454 let buffer = this.update(&mut cx, |this, cx| {
5455 this.opened_buffers
5456 .get(&envelope.payload.buffer_id)
5457 .and_then(|buffer| buffer.upgrade(cx))
5458 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))
5459 })?;
5460 buffer
5461 .update(&mut cx, |buffer, _| {
5462 buffer.wait_for_version(deserialize_version(envelope.payload.version))
5463 })
5464 .await;
5465
5466 let version = buffer.read_with(&cx, |buffer, _| buffer.version());
5467 let code_actions = this.update(&mut cx, |this, cx| {
5468 Ok::<_, anyhow::Error>(this.code_actions(&buffer, start..end, cx))
5469 })?;
5470
5471 Ok(proto::GetCodeActionsResponse {
5472 actions: code_actions
5473 .await?
5474 .iter()
5475 .map(language::proto::serialize_code_action)
5476 .collect(),
5477 version: serialize_version(&version),
5478 })
5479 }
5480
5481 async fn handle_apply_code_action(
5482 this: ModelHandle<Self>,
5483 envelope: TypedEnvelope<proto::ApplyCodeAction>,
5484 _: Arc<Client>,
5485 mut cx: AsyncAppContext,
5486 ) -> Result<proto::ApplyCodeActionResponse> {
5487 let sender_id = envelope.original_sender_id()?;
5488 let action = language::proto::deserialize_code_action(
5489 envelope
5490 .payload
5491 .action
5492 .ok_or_else(|| anyhow!("invalid action"))?,
5493 )?;
5494 let apply_code_action = this.update(&mut cx, |this, cx| {
5495 let buffer = this
5496 .opened_buffers
5497 .get(&envelope.payload.buffer_id)
5498 .and_then(|buffer| buffer.upgrade(cx))
5499 .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
5500 Ok::<_, anyhow::Error>(this.apply_code_action(buffer, action, false, cx))
5501 })?;
5502
5503 let project_transaction = apply_code_action.await?;
5504 let project_transaction = this.update(&mut cx, |this, cx| {
5505 this.serialize_project_transaction_for_peer(project_transaction, sender_id, cx)
5506 });
5507 Ok(proto::ApplyCodeActionResponse {
5508 transaction: Some(project_transaction),
5509 })
5510 }
5511
5512 async fn handle_lsp_command<T: LspCommand>(
5513 this: ModelHandle<Self>,
5514 envelope: TypedEnvelope<T::ProtoRequest>,
5515 _: Arc<Client>,
5516 mut cx: AsyncAppContext,
5517 ) -> Result<<T::ProtoRequest as proto::RequestMessage>::Response>
5518 where
5519 <T::LspRequest as lsp::request::Request>::Result: Send,
5520 {
5521 let sender_id = envelope.original_sender_id()?;
5522 let buffer_id = T::buffer_id_from_proto(&envelope.payload);
5523 let buffer_handle = this.read_with(&cx, |this, _| {
5524 this.opened_buffers
5525 .get(&buffer_id)
5526 .and_then(|buffer| buffer.upgrade(&cx))
5527 .ok_or_else(|| anyhow!("unknown buffer id {}", buffer_id))
5528 })?;
5529 let request = T::from_proto(
5530 envelope.payload,
5531 this.clone(),
5532 buffer_handle.clone(),
5533 cx.clone(),
5534 )
5535 .await?;
5536 let buffer_version = buffer_handle.read_with(&cx, |buffer, _| buffer.version());
5537 let response = this
5538 .update(&mut cx, |this, cx| {
5539 this.request_lsp(buffer_handle, request, cx)
5540 })
5541 .await?;
5542 this.update(&mut cx, |this, cx| {
5543 Ok(T::response_to_proto(
5544 response,
5545 this,
5546 sender_id,
5547 &buffer_version,
5548 cx,
5549 ))
5550 })
5551 }
5552
5553 async fn handle_get_project_symbols(
5554 this: ModelHandle<Self>,
5555 envelope: TypedEnvelope<proto::GetProjectSymbols>,
5556 _: Arc<Client>,
5557 mut cx: AsyncAppContext,
5558 ) -> Result<proto::GetProjectSymbolsResponse> {
5559 let symbols = this
5560 .update(&mut cx, |this, cx| {
5561 this.symbols(&envelope.payload.query, cx)
5562 })
5563 .await?;
5564
5565 Ok(proto::GetProjectSymbolsResponse {
5566 symbols: symbols.iter().map(serialize_symbol).collect(),
5567 })
5568 }
5569
5570 async fn handle_search_project(
5571 this: ModelHandle<Self>,
5572 envelope: TypedEnvelope<proto::SearchProject>,
5573 _: Arc<Client>,
5574 mut cx: AsyncAppContext,
5575 ) -> Result<proto::SearchProjectResponse> {
5576 let peer_id = envelope.original_sender_id()?;
5577 let query = SearchQuery::from_proto(envelope.payload)?;
5578 let result = this
5579 .update(&mut cx, |this, cx| this.search(query, cx))
5580 .await?;
5581
5582 this.update(&mut cx, |this, cx| {
5583 let mut locations = Vec::new();
5584 for (buffer, ranges) in result {
5585 for range in ranges {
5586 let start = serialize_anchor(&range.start);
5587 let end = serialize_anchor(&range.end);
5588 let buffer_id = this.create_buffer_for_peer(&buffer, peer_id, cx);
5589 locations.push(proto::Location {
5590 buffer_id,
5591 start: Some(start),
5592 end: Some(end),
5593 });
5594 }
5595 }
5596 Ok(proto::SearchProjectResponse { locations })
5597 })
5598 }
5599
5600 async fn handle_open_buffer_for_symbol(
5601 this: ModelHandle<Self>,
5602 envelope: TypedEnvelope<proto::OpenBufferForSymbol>,
5603 _: Arc<Client>,
5604 mut cx: AsyncAppContext,
5605 ) -> Result<proto::OpenBufferForSymbolResponse> {
5606 let peer_id = envelope.original_sender_id()?;
5607 let symbol = envelope
5608 .payload
5609 .symbol
5610 .ok_or_else(|| anyhow!("invalid symbol"))?;
5611 let symbol = this
5612 .read_with(&cx, |this, _| this.deserialize_symbol(symbol))
5613 .await?;
5614 let symbol = this.read_with(&cx, |this, _| {
5615 let signature = this.symbol_signature(&symbol.path);
5616 if signature == symbol.signature {
5617 Ok(symbol)
5618 } else {
5619 Err(anyhow!("invalid symbol signature"))
5620 }
5621 })?;
5622 let buffer = this
5623 .update(&mut cx, |this, cx| this.open_buffer_for_symbol(&symbol, cx))
5624 .await?;
5625
5626 Ok(proto::OpenBufferForSymbolResponse {
5627 buffer_id: this.update(&mut cx, |this, cx| {
5628 this.create_buffer_for_peer(&buffer, peer_id, cx)
5629 }),
5630 })
5631 }
5632
5633 fn symbol_signature(&self, project_path: &ProjectPath) -> [u8; 32] {
5634 let mut hasher = Sha256::new();
5635 hasher.update(project_path.worktree_id.to_proto().to_be_bytes());
5636 hasher.update(project_path.path.to_string_lossy().as_bytes());
5637 hasher.update(self.nonce.to_be_bytes());
5638 hasher.finalize().as_slice().try_into().unwrap()
5639 }
5640
5641 async fn handle_open_buffer_by_id(
5642 this: ModelHandle<Self>,
5643 envelope: TypedEnvelope<proto::OpenBufferById>,
5644 _: Arc<Client>,
5645 mut cx: AsyncAppContext,
5646 ) -> Result<proto::OpenBufferResponse> {
5647 let peer_id = envelope.original_sender_id()?;
5648 let buffer = this
5649 .update(&mut cx, |this, cx| {
5650 this.open_buffer_by_id(envelope.payload.id, cx)
5651 })
5652 .await?;
5653 this.update(&mut cx, |this, cx| {
5654 Ok(proto::OpenBufferResponse {
5655 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
5656 })
5657 })
5658 }
5659
5660 async fn handle_open_buffer_by_path(
5661 this: ModelHandle<Self>,
5662 envelope: TypedEnvelope<proto::OpenBufferByPath>,
5663 _: Arc<Client>,
5664 mut cx: AsyncAppContext,
5665 ) -> Result<proto::OpenBufferResponse> {
5666 let peer_id = envelope.original_sender_id()?;
5667 let worktree_id = WorktreeId::from_proto(envelope.payload.worktree_id);
5668 let open_buffer = this.update(&mut cx, |this, cx| {
5669 this.open_buffer(
5670 ProjectPath {
5671 worktree_id,
5672 path: PathBuf::from(envelope.payload.path).into(),
5673 },
5674 cx,
5675 )
5676 });
5677
5678 let buffer = open_buffer.await?;
5679 this.update(&mut cx, |this, cx| {
5680 Ok(proto::OpenBufferResponse {
5681 buffer_id: this.create_buffer_for_peer(&buffer, peer_id, cx),
5682 })
5683 })
5684 }
5685
5686 fn serialize_project_transaction_for_peer(
5687 &mut self,
5688 project_transaction: ProjectTransaction,
5689 peer_id: PeerId,
5690 cx: &AppContext,
5691 ) -> proto::ProjectTransaction {
5692 let mut serialized_transaction = proto::ProjectTransaction {
5693 buffer_ids: Default::default(),
5694 transactions: Default::default(),
5695 };
5696 for (buffer, transaction) in project_transaction.0 {
5697 serialized_transaction
5698 .buffer_ids
5699 .push(self.create_buffer_for_peer(&buffer, peer_id, cx));
5700 serialized_transaction
5701 .transactions
5702 .push(language::proto::serialize_transaction(&transaction));
5703 }
5704 serialized_transaction
5705 }
5706
5707 fn deserialize_project_transaction(
5708 &mut self,
5709 message: proto::ProjectTransaction,
5710 push_to_history: bool,
5711 cx: &mut ModelContext<Self>,
5712 ) -> Task<Result<ProjectTransaction>> {
5713 cx.spawn(|this, mut cx| async move {
5714 let mut project_transaction = ProjectTransaction::default();
5715 for (buffer_id, transaction) in message.buffer_ids.into_iter().zip(message.transactions)
5716 {
5717 let buffer = this
5718 .update(&mut cx, |this, cx| this.wait_for_buffer(buffer_id, cx))
5719 .await?;
5720 let transaction = language::proto::deserialize_transaction(transaction)?;
5721 project_transaction.0.insert(buffer, transaction);
5722 }
5723
5724 for (buffer, transaction) in &project_transaction.0 {
5725 buffer
5726 .update(&mut cx, |buffer, _| {
5727 buffer.wait_for_edits(transaction.edit_ids.iter().copied())
5728 })
5729 .await;
5730
5731 if push_to_history {
5732 buffer.update(&mut cx, |buffer, _| {
5733 buffer.push_transaction(transaction.clone(), Instant::now());
5734 });
5735 }
5736 }
5737
5738 Ok(project_transaction)
5739 })
5740 }
5741
5742 fn create_buffer_for_peer(
5743 &mut self,
5744 buffer: &ModelHandle<Buffer>,
5745 peer_id: PeerId,
5746 cx: &AppContext,
5747 ) -> u64 {
5748 let buffer_id = buffer.read(cx).remote_id();
5749 if let Some(project_id) = self.remote_id() {
5750 let shared_buffers = self.shared_buffers.entry(peer_id).or_default();
5751 if shared_buffers.insert(buffer_id) {
5752 let buffer = buffer.read(cx);
5753 let state = buffer.to_proto();
5754 let operations = buffer.serialize_ops(cx);
5755 let client = self.client.clone();
5756 cx.background()
5757 .spawn(
5758 async move {
5759 let mut operations = operations.await;
5760
5761 client.send(proto::CreateBufferForPeer {
5762 project_id,
5763 peer_id: peer_id.0,
5764 variant: Some(proto::create_buffer_for_peer::Variant::State(state)),
5765 })?;
5766
5767 loop {
5768 #[cfg(any(test, feature = "test-support"))]
5769 const CHUNK_SIZE: usize = 5;
5770
5771 #[cfg(not(any(test, feature = "test-support")))]
5772 const CHUNK_SIZE: usize = 100;
5773
5774 let chunk = operations
5775 .drain(..cmp::min(CHUNK_SIZE, operations.len()))
5776 .collect();
5777 let is_last = operations.is_empty();
5778 client.send(proto::CreateBufferForPeer {
5779 project_id,
5780 peer_id: peer_id.0,
5781 variant: Some(proto::create_buffer_for_peer::Variant::Chunk(
5782 proto::BufferChunk {
5783 buffer_id,
5784 operations: chunk,
5785 is_last,
5786 },
5787 )),
5788 })?;
5789
5790 if is_last {
5791 break;
5792 }
5793 }
5794
5795 Ok(())
5796 }
5797 .log_err(),
5798 )
5799 .detach();
5800 }
5801 }
5802
5803 buffer_id
5804 }
5805
5806 fn wait_for_buffer(
5807 &self,
5808 id: u64,
5809 cx: &mut ModelContext<Self>,
5810 ) -> Task<Result<ModelHandle<Buffer>>> {
5811 let mut opened_buffer_rx = self.opened_buffer.1.clone();
5812 cx.spawn(|this, cx| async move {
5813 let buffer = loop {
5814 let buffer = this.read_with(&cx, |this, cx| {
5815 this.opened_buffers
5816 .get(&id)
5817 .and_then(|buffer| buffer.upgrade(cx))
5818 });
5819 if let Some(buffer) = buffer {
5820 break buffer;
5821 } else if this.read_with(&cx, |this, _| this.is_read_only()) {
5822 return Err(anyhow!("disconnected before buffer {} could be opened", id));
5823 }
5824
5825 opened_buffer_rx
5826 .next()
5827 .await
5828 .ok_or_else(|| anyhow!("project dropped while waiting for buffer"))?;
5829 };
5830 Ok(buffer)
5831 })
5832 }
5833
5834 fn deserialize_symbol(
5835 &self,
5836 serialized_symbol: proto::Symbol,
5837 ) -> impl Future<Output = Result<Symbol>> {
5838 let languages = self.languages.clone();
5839 async move {
5840 let source_worktree_id = WorktreeId::from_proto(serialized_symbol.source_worktree_id);
5841 let worktree_id = WorktreeId::from_proto(serialized_symbol.worktree_id);
5842 let start = serialized_symbol
5843 .start
5844 .ok_or_else(|| anyhow!("invalid start"))?;
5845 let end = serialized_symbol
5846 .end
5847 .ok_or_else(|| anyhow!("invalid end"))?;
5848 let kind = unsafe { mem::transmute(serialized_symbol.kind) };
5849 let path = ProjectPath {
5850 worktree_id,
5851 path: PathBuf::from(serialized_symbol.path).into(),
5852 };
5853 let language = languages.select_language(&path.path);
5854 Ok(Symbol {
5855 language_server_name: LanguageServerName(
5856 serialized_symbol.language_server_name.into(),
5857 ),
5858 source_worktree_id,
5859 path,
5860 label: {
5861 match language {
5862 Some(language) => {
5863 language
5864 .label_for_symbol(&serialized_symbol.name, kind)
5865 .await
5866 }
5867 None => None,
5868 }
5869 .unwrap_or_else(|| CodeLabel::plain(serialized_symbol.name.clone(), None))
5870 },
5871
5872 name: serialized_symbol.name,
5873 range: PointUtf16::new(start.row, start.column)
5874 ..PointUtf16::new(end.row, end.column),
5875 kind,
5876 signature: serialized_symbol
5877 .signature
5878 .try_into()
5879 .map_err(|_| anyhow!("invalid signature"))?,
5880 })
5881 }
5882 }
5883
5884 async fn handle_buffer_saved(
5885 this: ModelHandle<Self>,
5886 envelope: TypedEnvelope<proto::BufferSaved>,
5887 _: Arc<Client>,
5888 mut cx: AsyncAppContext,
5889 ) -> Result<()> {
5890 let version = deserialize_version(envelope.payload.version);
5891 let mtime = envelope
5892 .payload
5893 .mtime
5894 .ok_or_else(|| anyhow!("missing mtime"))?
5895 .into();
5896
5897 this.update(&mut cx, |this, cx| {
5898 let buffer = this
5899 .opened_buffers
5900 .get(&envelope.payload.buffer_id)
5901 .and_then(|buffer| buffer.upgrade(cx));
5902 if let Some(buffer) = buffer {
5903 buffer.update(cx, |buffer, cx| {
5904 buffer.did_save(version, envelope.payload.fingerprint, mtime, None, cx);
5905 });
5906 }
5907 Ok(())
5908 })
5909 }
5910
5911 async fn handle_buffer_reloaded(
5912 this: ModelHandle<Self>,
5913 envelope: TypedEnvelope<proto::BufferReloaded>,
5914 _: Arc<Client>,
5915 mut cx: AsyncAppContext,
5916 ) -> Result<()> {
5917 let payload = envelope.payload;
5918 let version = deserialize_version(payload.version);
5919 let line_ending = deserialize_line_ending(
5920 proto::LineEnding::from_i32(payload.line_ending)
5921 .ok_or_else(|| anyhow!("missing line ending"))?,
5922 );
5923 let mtime = payload
5924 .mtime
5925 .ok_or_else(|| anyhow!("missing mtime"))?
5926 .into();
5927 this.update(&mut cx, |this, cx| {
5928 let buffer = this
5929 .opened_buffers
5930 .get(&payload.buffer_id)
5931 .and_then(|buffer| buffer.upgrade(cx));
5932 if let Some(buffer) = buffer {
5933 buffer.update(cx, |buffer, cx| {
5934 buffer.did_reload(version, payload.fingerprint, line_ending, mtime, cx);
5935 });
5936 }
5937 Ok(())
5938 })
5939 }
5940
5941 #[allow(clippy::type_complexity)]
5942 fn edits_from_lsp(
5943 &mut self,
5944 buffer: &ModelHandle<Buffer>,
5945 lsp_edits: impl 'static + Send + IntoIterator<Item = lsp::TextEdit>,
5946 version: Option<i32>,
5947 cx: &mut ModelContext<Self>,
5948 ) -> Task<Result<Vec<(Range<Anchor>, String)>>> {
5949 let snapshot = self.buffer_snapshot_for_lsp_version(buffer, version, cx);
5950 cx.background().spawn(async move {
5951 let snapshot = snapshot?;
5952 let mut lsp_edits = lsp_edits
5953 .into_iter()
5954 .map(|edit| (range_from_lsp(edit.range), edit.new_text))
5955 .collect::<Vec<_>>();
5956 lsp_edits.sort_by_key(|(range, _)| range.start);
5957
5958 let mut lsp_edits = lsp_edits.into_iter().peekable();
5959 let mut edits = Vec::new();
5960 while let Some((mut range, mut new_text)) = lsp_edits.next() {
5961 // Clip invalid ranges provided by the language server.
5962 range.start = snapshot.clip_point_utf16(range.start, Bias::Left);
5963 range.end = snapshot.clip_point_utf16(range.end, Bias::Left);
5964
5965 // Combine any LSP edits that are adjacent.
5966 //
5967 // Also, combine LSP edits that are separated from each other by only
5968 // a newline. This is important because for some code actions,
5969 // Rust-analyzer rewrites the entire buffer via a series of edits that
5970 // are separated by unchanged newline characters.
5971 //
5972 // In order for the diffing logic below to work properly, any edits that
5973 // cancel each other out must be combined into one.
5974 while let Some((next_range, next_text)) = lsp_edits.peek() {
5975 if next_range.start > range.end {
5976 if next_range.start.row > range.end.row + 1
5977 || next_range.start.column > 0
5978 || snapshot.clip_point_utf16(
5979 PointUtf16::new(range.end.row, u32::MAX),
5980 Bias::Left,
5981 ) > range.end
5982 {
5983 break;
5984 }
5985 new_text.push('\n');
5986 }
5987 range.end = next_range.end;
5988 new_text.push_str(next_text);
5989 lsp_edits.next();
5990 }
5991
5992 // For multiline edits, perform a diff of the old and new text so that
5993 // we can identify the changes more precisely, preserving the locations
5994 // of any anchors positioned in the unchanged regions.
5995 if range.end.row > range.start.row {
5996 let mut offset = range.start.to_offset(&snapshot);
5997 let old_text = snapshot.text_for_range(range).collect::<String>();
5998
5999 let diff = TextDiff::from_lines(old_text.as_str(), &new_text);
6000 let mut moved_since_edit = true;
6001 for change in diff.iter_all_changes() {
6002 let tag = change.tag();
6003 let value = change.value();
6004 match tag {
6005 ChangeTag::Equal => {
6006 offset += value.len();
6007 moved_since_edit = true;
6008 }
6009 ChangeTag::Delete => {
6010 let start = snapshot.anchor_after(offset);
6011 let end = snapshot.anchor_before(offset + value.len());
6012 if moved_since_edit {
6013 edits.push((start..end, String::new()));
6014 } else {
6015 edits.last_mut().unwrap().0.end = end;
6016 }
6017 offset += value.len();
6018 moved_since_edit = false;
6019 }
6020 ChangeTag::Insert => {
6021 if moved_since_edit {
6022 let anchor = snapshot.anchor_after(offset);
6023 edits.push((anchor..anchor, value.to_string()));
6024 } else {
6025 edits.last_mut().unwrap().1.push_str(value);
6026 }
6027 moved_since_edit = false;
6028 }
6029 }
6030 }
6031 } else if range.end == range.start {
6032 let anchor = snapshot.anchor_after(range.start);
6033 edits.push((anchor..anchor, new_text));
6034 } else {
6035 let edit_start = snapshot.anchor_after(range.start);
6036 let edit_end = snapshot.anchor_before(range.end);
6037 edits.push((edit_start..edit_end, new_text));
6038 }
6039 }
6040
6041 Ok(edits)
6042 })
6043 }
6044
6045 fn buffer_snapshot_for_lsp_version(
6046 &mut self,
6047 buffer: &ModelHandle<Buffer>,
6048 version: Option<i32>,
6049 cx: &AppContext,
6050 ) -> Result<TextBufferSnapshot> {
6051 const OLD_VERSIONS_TO_RETAIN: i32 = 10;
6052
6053 if let Some(version) = version {
6054 let buffer_id = buffer.read(cx).remote_id();
6055 let snapshots = self
6056 .buffer_snapshots
6057 .get_mut(&buffer_id)
6058 .ok_or_else(|| anyhow!("no snapshot found for buffer {}", buffer_id))?;
6059 let mut found_snapshot = None;
6060 snapshots.retain(|(snapshot_version, snapshot)| {
6061 if snapshot_version + OLD_VERSIONS_TO_RETAIN < version {
6062 false
6063 } else {
6064 if *snapshot_version == version {
6065 found_snapshot = Some(snapshot.clone());
6066 }
6067 true
6068 }
6069 });
6070
6071 found_snapshot.ok_or_else(|| {
6072 anyhow!(
6073 "snapshot not found for buffer {} at version {}",
6074 buffer_id,
6075 version
6076 )
6077 })
6078 } else {
6079 Ok((buffer.read(cx)).text_snapshot())
6080 }
6081 }
6082
6083 fn language_server_for_buffer(
6084 &self,
6085 buffer: &Buffer,
6086 cx: &AppContext,
6087 ) -> Option<(&Arc<CachedLspAdapter>, &Arc<LanguageServer>)> {
6088 if let Some((file, language)) = File::from_dyn(buffer.file()).zip(buffer.language()) {
6089 let name = language.lsp_adapter()?.name.clone();
6090 let worktree_id = file.worktree_id(cx);
6091 let key = (worktree_id, name);
6092
6093 if let Some(server_id) = self.language_server_ids.get(&key) {
6094 if let Some(LanguageServerState::Running {
6095 adapter, server, ..
6096 }) = self.language_servers.get(server_id)
6097 {
6098 return Some((adapter, server));
6099 }
6100 }
6101 }
6102
6103 None
6104 }
6105}
6106
6107impl ProjectStore {
6108 pub fn new(db: Arc<Db>) -> Self {
6109 Self {
6110 db,
6111 projects: Default::default(),
6112 }
6113 }
6114
6115 pub fn projects<'a>(
6116 &'a self,
6117 cx: &'a AppContext,
6118 ) -> impl 'a + Iterator<Item = ModelHandle<Project>> {
6119 self.projects
6120 .iter()
6121 .filter_map(|project| project.upgrade(cx))
6122 }
6123
6124 fn add_project(&mut self, project: WeakModelHandle<Project>, cx: &mut ModelContext<Self>) {
6125 if let Err(ix) = self
6126 .projects
6127 .binary_search_by_key(&project.id(), WeakModelHandle::id)
6128 {
6129 self.projects.insert(ix, project);
6130 }
6131 cx.notify();
6132 }
6133
6134 fn prune_projects(&mut self, cx: &mut ModelContext<Self>) {
6135 let mut did_change = false;
6136 self.projects.retain(|project| {
6137 if project.is_upgradable(cx) {
6138 true
6139 } else {
6140 did_change = true;
6141 false
6142 }
6143 });
6144 if did_change {
6145 cx.notify();
6146 }
6147 }
6148}
6149
6150impl WorktreeHandle {
6151 pub fn upgrade(&self, cx: &AppContext) -> Option<ModelHandle<Worktree>> {
6152 match self {
6153 WorktreeHandle::Strong(handle) => Some(handle.clone()),
6154 WorktreeHandle::Weak(handle) => handle.upgrade(cx),
6155 }
6156 }
6157}
6158
6159impl OpenBuffer {
6160 pub fn upgrade(&self, cx: &impl UpgradeModelHandle) -> Option<ModelHandle<Buffer>> {
6161 match self {
6162 OpenBuffer::Strong(handle) => Some(handle.clone()),
6163 OpenBuffer::Weak(handle) => handle.upgrade(cx),
6164 OpenBuffer::Operations(_) => None,
6165 }
6166 }
6167}
6168
6169pub struct PathMatchCandidateSet {
6170 pub snapshot: Snapshot,
6171 pub include_ignored: bool,
6172 pub include_root_name: bool,
6173}
6174
6175impl<'a> fuzzy::PathMatchCandidateSet<'a> for PathMatchCandidateSet {
6176 type Candidates = PathMatchCandidateSetIter<'a>;
6177
6178 fn id(&self) -> usize {
6179 self.snapshot.id().to_usize()
6180 }
6181
6182 fn len(&self) -> usize {
6183 if self.include_ignored {
6184 self.snapshot.file_count()
6185 } else {
6186 self.snapshot.visible_file_count()
6187 }
6188 }
6189
6190 fn prefix(&self) -> Arc<str> {
6191 if self.snapshot.root_entry().map_or(false, |e| e.is_file()) {
6192 self.snapshot.root_name().into()
6193 } else if self.include_root_name {
6194 format!("{}/", self.snapshot.root_name()).into()
6195 } else {
6196 "".into()
6197 }
6198 }
6199
6200 fn candidates(&'a self, start: usize) -> Self::Candidates {
6201 PathMatchCandidateSetIter {
6202 traversal: self.snapshot.files(self.include_ignored, start),
6203 }
6204 }
6205}
6206
6207pub struct PathMatchCandidateSetIter<'a> {
6208 traversal: Traversal<'a>,
6209}
6210
6211impl<'a> Iterator for PathMatchCandidateSetIter<'a> {
6212 type Item = fuzzy::PathMatchCandidate<'a>;
6213
6214 fn next(&mut self) -> Option<Self::Item> {
6215 self.traversal.next().map(|entry| {
6216 if let EntryKind::File(char_bag) = entry.kind {
6217 fuzzy::PathMatchCandidate {
6218 path: &entry.path,
6219 char_bag,
6220 }
6221 } else {
6222 unreachable!()
6223 }
6224 })
6225 }
6226}
6227
6228impl Entity for ProjectStore {
6229 type Event = ();
6230}
6231
6232impl Entity for Project {
6233 type Event = Event;
6234
6235 fn release(&mut self, cx: &mut gpui::MutableAppContext) {
6236 self.project_store.update(cx, ProjectStore::prune_projects);
6237
6238 match &self.client_state {
6239 ProjectClientState::Local { remote_id_rx, .. } => {
6240 if let Some(project_id) = *remote_id_rx.borrow() {
6241 self.client
6242 .send(proto::UnregisterProject { project_id })
6243 .log_err();
6244 }
6245 }
6246 ProjectClientState::Remote { remote_id, .. } => {
6247 self.client
6248 .send(proto::LeaveProject {
6249 project_id: *remote_id,
6250 })
6251 .log_err();
6252 }
6253 }
6254 }
6255
6256 fn app_will_quit(
6257 &mut self,
6258 _: &mut MutableAppContext,
6259 ) -> Option<std::pin::Pin<Box<dyn 'static + Future<Output = ()>>>> {
6260 let shutdown_futures = self
6261 .language_servers
6262 .drain()
6263 .map(|(_, server_state)| async {
6264 match server_state {
6265 LanguageServerState::Running { server, .. } => server.shutdown()?.await,
6266 LanguageServerState::Starting(starting_server) => {
6267 starting_server.await?.shutdown()?.await
6268 }
6269 }
6270 })
6271 .collect::<Vec<_>>();
6272
6273 Some(
6274 async move {
6275 futures::future::join_all(shutdown_futures).await;
6276 }
6277 .boxed(),
6278 )
6279 }
6280}
6281
6282impl Collaborator {
6283 fn from_proto(
6284 message: proto::Collaborator,
6285 user_store: &ModelHandle<UserStore>,
6286 cx: &mut AsyncAppContext,
6287 ) -> impl Future<Output = Result<Self>> {
6288 let user = user_store.update(cx, |user_store, cx| {
6289 user_store.fetch_user(message.user_id, cx)
6290 });
6291
6292 async move {
6293 Ok(Self {
6294 peer_id: PeerId(message.peer_id),
6295 user: user.await?,
6296 replica_id: message.replica_id as ReplicaId,
6297 })
6298 }
6299 }
6300}
6301
6302impl<P: AsRef<Path>> From<(WorktreeId, P)> for ProjectPath {
6303 fn from((worktree_id, path): (WorktreeId, P)) -> Self {
6304 Self {
6305 worktree_id,
6306 path: path.as_ref().into(),
6307 }
6308 }
6309}
6310
6311impl From<lsp::CreateFileOptions> for fs::CreateOptions {
6312 fn from(options: lsp::CreateFileOptions) -> Self {
6313 Self {
6314 overwrite: options.overwrite.unwrap_or(false),
6315 ignore_if_exists: options.ignore_if_exists.unwrap_or(false),
6316 }
6317 }
6318}
6319
6320impl From<lsp::RenameFileOptions> for fs::RenameOptions {
6321 fn from(options: lsp::RenameFileOptions) -> Self {
6322 Self {
6323 overwrite: options.overwrite.unwrap_or(false),
6324 ignore_if_exists: options.ignore_if_exists.unwrap_or(false),
6325 }
6326 }
6327}
6328
6329impl From<lsp::DeleteFileOptions> for fs::RemoveOptions {
6330 fn from(options: lsp::DeleteFileOptions) -> Self {
6331 Self {
6332 recursive: options.recursive.unwrap_or(false),
6333 ignore_if_not_exists: options.ignore_if_not_exists.unwrap_or(false),
6334 }
6335 }
6336}
6337
6338fn serialize_symbol(symbol: &Symbol) -> proto::Symbol {
6339 proto::Symbol {
6340 language_server_name: symbol.language_server_name.0.to_string(),
6341 source_worktree_id: symbol.source_worktree_id.to_proto(),
6342 worktree_id: symbol.path.worktree_id.to_proto(),
6343 path: symbol.path.path.to_string_lossy().to_string(),
6344 name: symbol.name.clone(),
6345 kind: unsafe { mem::transmute(symbol.kind) },
6346 start: Some(proto::Point {
6347 row: symbol.range.start.row,
6348 column: symbol.range.start.column,
6349 }),
6350 end: Some(proto::Point {
6351 row: symbol.range.end.row,
6352 column: symbol.range.end.column,
6353 }),
6354 signature: symbol.signature.to_vec(),
6355 }
6356}
6357
6358fn relativize_path(base: &Path, path: &Path) -> PathBuf {
6359 let mut path_components = path.components();
6360 let mut base_components = base.components();
6361 let mut components: Vec<Component> = Vec::new();
6362 loop {
6363 match (path_components.next(), base_components.next()) {
6364 (None, None) => break,
6365 (Some(a), None) => {
6366 components.push(a);
6367 components.extend(path_components.by_ref());
6368 break;
6369 }
6370 (None, _) => components.push(Component::ParentDir),
6371 (Some(a), Some(b)) if components.is_empty() && a == b => (),
6372 (Some(a), Some(b)) if b == Component::CurDir => components.push(a),
6373 (Some(a), Some(_)) => {
6374 components.push(Component::ParentDir);
6375 for _ in base_components {
6376 components.push(Component::ParentDir);
6377 }
6378 components.push(a);
6379 components.extend(path_components.by_ref());
6380 break;
6381 }
6382 }
6383 }
6384 components.iter().map(|c| c.as_os_str()).collect()
6385}
6386
6387impl Item for Buffer {
6388 fn entry_id(&self, cx: &AppContext) -> Option<ProjectEntryId> {
6389 File::from_dyn(self.file()).and_then(|file| file.project_entry_id(cx))
6390 }
6391}